I’ve just felt empty and upset

I met my friends brother (19) when I was 16, I was going through a lot of family issues March 2019 and I ended up not being able to live at my house because my stepdad had previously been physically abusive to me.

During the time my friend and I had just met, so as I was going through my home issues I started to drink and had started smoking weed a couple weeks prior. My friend usually went to sleep pretty early so I went to her brother because he was nice and I would vent and ask for advice but the only issue is I would be crossed because within that point I was becoming an alcoholic. One night I went in his room ( I was crossed ) and we were just talking, I had my boyfriends hat on and he kept wanting to wear it and I was like ‘hey, that’s my boyfriends hat.’ and he kept taking it. Then I was showing him pictures through my camera roll and I realized I had a half naked pic of me in a bra and shorts because I was on a diet so I quickly turned off my phone but he kept wanting to see it. Then he pulled me up to him by my calves and put both of my legs on his right shoulder, I was very uncomfortable so I scoot down away from him. He kept tickling me, trapping me between his legs, he was also rubbing his foot against my legs, and he just kept pulling me closer with his legs. I kept moving back, I was uncomfortable but I didn’t know how to express it besides moving back and pushing away his hands. At one point I got off the bed because I was incredibly uncomfortable and I was sitting on the floor and he kept trying to convince me to get back on the bed. I was stress cleaning because I didn’t know what to do and eventually he got up and I was standing by the cot and he pushed me onto the cot and then sat back down close to me, eventually I got the courage to say “i’m gonna go to sleep.”

Now I’m 18, he’s 20 and he has a girlfriend. I love his girlfriend and the situations stopped for a bit but lately he’s been acting weird again and it hasn’t been as extreme as the first situation but it still does make me uncomfortable and I just don’t know what to do because i’m not interested in him, i’m still dating the same guy. I just don’t want anything to happen but I know I have more of a voice than I ever had.