Ex-boyfriend constantly making disgusting remarks about me being with other men even though

A) Been single for the last 7 years
B) Only had ever been with 2 men

Even when we were together, he would detail what he wanted other me to do to me.

We haven’t seen each other in 7 years since he moved to Germany but every few months, he contacts me to try to have sex with me and to describe his fantasies of me and other men. Once he shared how he wanted to rape me to shut me up.

I can’t believe that I’ve put up with this abuse for 9 years and I feel like I will never get rid of him as he pops up when he feels like it.