To stop your ex-wife from harassing you, start documenting every incident in detail, then match your response to the severity: cut off unnecessary contact and send a formal cease and desist letter for persistent unwanted communication, file for a civil protective order when warnings don’t work, move for contempt if she’s violating an existing divorce or custody order, and call the police the moment the behavior crosses into threats, stalking, or electronic surveillance. Every one of these steps depends on the same foundation, which is written, timestamped evidence of a pattern. Build that first.
Know What Legally Counts as Harassment
Harassment is a pattern of unwanted behavior that serves no legitimate purpose and causes real distress or fear. One angry voicemail after a custody disagreement probably doesn’t qualify. Dozens of calls at 2 a.m., showing up uninvited at your workplace, or sending threatening messages does. Courts look for repeated conduct, not isolated incidents.
Common forms include floods of texts, emails, or social media messages; threats against you, your family, or your property; spreading false and damaging information to friends, employers, or on social media; and appearing at your home or office without reason. Stalking, whether physical or digital, is a more serious category with its own criminal consequences.
Federal law treats cyberstalking as a crime when someone uses electronic communication to engage in a course of conduct that puts you in reasonable fear of serious injury or causes substantial emotional distress. The statute defines “course of conduct” as two or more acts showing a continuity of purpose, so a single nasty email doesn’t meet the threshold but a sustained campaign does.1Office of the Law Revision Counsel. 18 USC 2261A – Stalking
Document Everything Before You Do Anything Else
This is where cases are won or lost. A judge deciding whether to grant a protective order wants concrete evidence of a pattern, not just your word that it happened.
For every incident, record the date, time, and location. Write down exactly what was said or done — the actual words, not a summary. Note witnesses by name. Save every text, email, voicemail, and social media post with screenshots that show timestamps. Keep call logs showing the volume and timing of unwanted contact. If she shows up at your home or workplace, write it down while the details are fresh and check whether any security cameras captured the visit.
Store everything in a dedicated folder, digital or physical, organized by date. A consistent log does two things: it demonstrates the pattern courts require, and it makes you a credible witness, because you can point to specifics instead of speaking in generalities. This same documentation serves you whether you end up sending a demand letter, filing for a protective order, or reporting a crime.
Start With Boundaries and a Written Warning
Formal court proceedings aren’t always your first best move. Two lower-friction options often reduce or stop the behavior.
Cut Down the Channels
If you share children, you can’t cut off contact entirely, but you can control how it happens. Restrict communication to a single channel, ideally a co-parenting app, and limit it to child-related topics. Co-parenting apps create time-stamped, unalterable records of every exchange, which eliminates the “he said, she said” problem and gives both parents a cooling-off period before responding. People tend to behave better when they know every message is logged.
For anything unrelated to the children, you have no obligation to respond. Block her number, filter her emails, restrict her on social media. Silence is a boundary, not rudeness. Every unanswered message she sends adds to your documentation.
Send a Cease and Desist Letter
A cease and desist letter is a formal written demand that the harassing behavior stop, with a warning that continued conduct will lead to legal action. The letter itself has no legal force, but it creates a powerful piece of evidence: once she has received a clear written demand to stop, she cannot credibly claim she didn’t know her contact was unwanted.
You can write it yourself, though a letter on an attorney’s letterhead tends to carry more weight. Send it by certified mail so you have proof of delivery, and keep a copy. Make it factual and specific about what behaviors must stop and what happens if they don’t. Leave the emotional language out. This is a legal document, not an argument.
File for a Protective Order
When warnings don’t work, a civil protective order (also called a restraining order or order of protection) is your primary legal tool. It’s a court order that legally prohibits specific conduct, and violating it is a crime.
How the Process Works
You file a petition, usually in your local family or civil court, describing the harassment, presenting your evidence, and explaining why you need protection. Many jurisdictions charge no filing fee for protective orders involving domestic violence or stalking. Federal grant funding is conditioned on states not making victims bear those costs, so most courts either waive fees or offer waivers.2eCFR. 28 CFR Part 90 – Violence Against Women
If there’s an immediate safety concern, the court can issue a temporary order the same day, often without your ex being present or notified. That temporary order stays in effect until a full hearing, typically two to three weeks later. At the hearing, both sides present evidence and the judge decides whether to issue a longer-term order, which can last a year or more and can be renewed.
What You Have to Prove
Protective order hearings use a “preponderance of the evidence” standard, meaning you must convince the judge it’s more likely than not that the harassment occurred and that you need protection. Timestamped screenshots, call logs, witness statements, and any police reports carry the argument. The better organized your evidence, the stronger your case.
What the Order Can Do
Depending on your situation and what the judge finds appropriate, a protective order can:
- Prohibit all contact, including calls, texts, emails, social media, and contact through third parties
- Require her to stay a set distance from your home, workplace, or the children’s school
- Bar specific conduct such as following, surveilling, photographing, or monitoring your movements
- Set temporary custody arrangements or rules for retrieving shared belongings
If she lives in another state or you relocate, federal law requires every state, territory, and tribal jurisdiction to honor a valid protective order issued elsewhere, provided the issuing court had jurisdiction and she received notice and an opportunity to be heard.3Office of the Law Revision Counsel. 18 USC 2265 – Full Faith and Credit Given to Protection Orders Carry a certified copy, and if you move, register it with local law enforcement.
Use the Order You Already Have
If your divorce decree or custody agreement already contains provisions on communication, conduct, or non-harassment, you may not need a new protective order. You can ask the court that issued the original order to enforce it.
The mechanism is a motion for contempt. You file with the court, explain which specific provisions are being violated, and attach your evidence. If the court finds her in contempt, the consequences can include fines, an award of your attorney fees, modifications to the existing custody or divorce order, mandatory counseling, or jail time. Judges tend to take violations of their own orders personally, and repeat violations escalate the penalties.
This route works well when the existing order already covers the behavior, because you don’t have to prove harassment in the abstract. You’re showing that a specific ordered boundary was crossed: here’s what the order says, here’s proof she did it anyway.
Call the Police When It Crosses Into Crime
Law enforcement is the right call when the behavior becomes criminal: physical threats or assault, stalking in person or online, vandalism, property destruction, or any violation of an existing protective order. Don’t wait. Even if officers don’t make an immediate arrest, the police report creates an official record that strengthens every other legal step.
Protective order violations are taken seriously. Under federal law, interstate violation of a protection order carries up to five years in prison as a baseline, rising to 10 years if serious bodily injury results and up to 20 years for permanent disfigurement or life-threatening injury.4Office of the Law Revision Counsel. 18 USC 2262 – Interstate Violation of Protection Order Most states treat violations as criminal offenses that can result in immediate arrest, and officers generally don’t need a warrant when they have probable cause to believe the order was broken.
Electronic surveillance is criminal too. Reading your emails by accessing your account, installing spyware on your phone, or using monitoring software violates the federal Wiretap Act, and being an ex-spouse creates no exception.5Office of the Law Revision Counsel. 18 USC 2511 – Interception and Disclosure of Wire, Oral, or Electronic Communications Prohibited The federal stalking statute is also broad enough to cover using tracking devices like AirTags to surveil someone with intent to harass or intimidate.6Library of Congress. Stalking Concerns Raised by Bluetooth Tracking Technologies If you suspect tracking, have your vehicle and devices inspected, change all your passwords, enable two-factor authentication, and remove her from any shared accounts, family phone plans, or cloud services.
Harassment and Child Custody
If you share children, her behavior isn’t just a problem for you. It’s relevant to custody. Every state uses some version of the “best interests of the child” standard, and a parent’s pattern of harassment, intimidation, or refusal to co-parent is directly relevant to that analysis.
Courts look at each parent’s willingness to support the child’s relationship with the other parent, any history of domestic violence or abusive behavior, and each parent’s ability to provide a stable environment. A parent who harasses, intimidates, or surveils the other parent undermines all of these. Joint custody in particular requires that parents communicate and make shared decisions, and sustained harassment is strong evidence that joint custody may not work.
A judicial guide used by family courts directs judges to examine whether alleged physical acts fit into a broader pattern of emotional, financial, or psychological abuse, and to weigh the effect of that behavior on both the other parent and the child.7NCJFCJ. A Judicial Guide to Child Safety in Custody Cases Documented harassment, especially with protective order violations or police reports attached, gives you real grounds to request a custody modification. This is another reason the documentation habit matters: the same log that supports a protective order today supports a custody motion later.