I would cut off contact. I wouldn't announce to him that I was doing it, I would just do it. I might have to one time directly tell him "Leave me alone", but I'd only do that if a domestic violence expert or the police told me I need to do that.

I'd get myself into therapy. I'd tell the therapist everything. I'd get help in focusing back on my own safety and well being. If I couldn't afford therapy I'd look for free support groups for domestic violence victims.

I'd call crisis/suicide prevention/domestic violence hotlines. I'd read books on these themes. I'd go to a support group.

I'd get professional advice on how to get him out of the house I own.

I'd get a restraining order when possible.

I'd definitely get the police involved.

I wouldn't be alone with him again.

Every time I found myself getting absorbed again wondering about all the details of why he is the way he is and what he might do......... I'd have ways to distract myself and focus on my self. I'd recognize that I'm a domestic violence survivor and that my own safety is the first priority.

I'd keep a log of all his interactions with me, in case the police need it.

No matter what, abuse is not okay. Even if the abuser is mentally ill.