Tw: rape, sexual abuse, harrassment

My abuser (a male high school teacher) has recently come back into my life. He has turned up unannounced and uninvited at my house where he has played a number of mind games with me. 

On one occasion he showed up with my ex-boyfriend (from almost 3 years ago), ex’s new gf and his wife. I did not feel comfortable calling the police or asking for help in case I was ganged up on. This has happened before. They sat in my house and subjected me to a litany of abusive accusations including:

- that I abused my ex boyfriend and forced him to have sex with me (we were in a consensual relationship for almost 4 years) 

- that my v*gina and breasts stank and having sex with me was traumatic 

- that I stopped him from being with his now gf (the teacher set them up) 

- that I tried to ruin the teacher and his wife’s marriage (he raped me) 

- that I was walking around the world as a total embarrassment and didn’t realise I was autistic (I’m not as far as I know) 

Another time he came with friends drunk and said he would rape me again (he did this to me aged 15 &amp; 20). He ended up kissing me several times. I told him I didn’t feel the same way I did for him when I was a 17 year old school girl. This time different assertions were made:
- his wife would leave him within 6 months
- he had REAL feelings for my exes gf and wanted to protect her feelings?
- said he would take me on holiday??
- said he wanted to impregnate me so he and his wife could keep the baby and I would be put in an institution 
- said that the only way out of any of this was for me to kill myself 
- when I said I didn’t wish any harm on the teacher or ex, or their partners and said I would find someone new or date when I was ready, teacher and the wife said “believe me we tried, nobody will ever go out with you” Turns out they were setting me up for failure by asking a guy on my street to knock on my door where he would meet his “perfect woman”. I came to the door unprepared, looking shit and he laughed whilst on the phone to them.  

I tried reporting the rape and harrassment to the police and they refused to write a report until I was totally sober (from weed) 2 months. I am now sober 14 days, have a diagnosis of BPD and have spoken to the rape crisis centre. 

I have no self esteem left and more importantly I truly fear for my life. What is wrong with this man? Why is this happening?