I had a similar problem with a friend's husband. He was lecherous towards me and regularly spoke about women as though they were idiots who existed solely to have sex with disgusting men like him.
He talked about fetishism a lot and once bought me a rubber skirt - I hadn't asked for it. He lied and told me it was my friend's idea. If I was at his house, he would make comments about my breasts, bum etc. He would produce pornographic magazines and show me pictures of women posing and tell me that I should pose like that if I wanted to keep a man interested.
He was horrible. Just horrible. He did grope me. I was having a shower at the swimming baths and he came in and grope me.
I was very young and very naive. I began to think I must have led him on. However, he was ugly, old, dirty and married to my best friend.
In the end, I told her. The final straw was when he insisted on coming into my flat to mend my telephone - I let him in because I was drunk (had been out with his wife) and my guard was down. I came out of the bathroom to find him lying on my floor, naked and with an erection. I demanded he leave or I would call the police.
He left. I told his wife everything. She ended my friendship - which upset me - but also ended the marriage.
I really think you must do something before this monster hurts you even more.