I feel violated? And gross..

My brothers friend and I had gotten into a relationship and decided that it was best for us to break up after a few months.

It’s been months and I still feel gross about what happened next, he was home in the town I live in December, for college break. He then stays the night at my house without telling me and my brother doesn’t tell me either. My father figure was absent from my life at this point so our house practically had no rules.

So my mom didn’t know this man was in our house till the next morning, but in the middle of the night he opens my door and watched me sleep and tried to wake me up to start sex. He even went as far as to come in just his boxers and as soon as I got him out of my room I ended up locking my door and crying till I passed out. I felt gross and violated, and I thought it was over.

He ended up taking a bunch of pictures and talking about how I teased him and how I wanted to fuck him into a group chat...my brother has stopped talking to me and I still feel like I was in some way sexually assaulted...does anyone have advice for becoming mentally trusting again when it comes to sex?