My boyfriend seems very distant lately

So I recently discovered my boyfriend has been going on pornhub again; after having a talk about that a few months ago. I wouldn't mind him going on porn sites, but I believe he has been chatting with local women. He denies it and says "that just pops up", but when I look at his history, that's all I see is local women. It really upsets me. I mean if I'm really not attractive to him any more, why can't he just say so and I'll leave. I was in an abusive relationship for 5 long years.. I finally get away from that and my boyfriend now came along and it was like love at first sight. We had so much fun for 3 years. But things seem to be going south pretty quickly. And last weekend he saw 2 of my best friends tits, and that was fine. But I mention seeing his friends dicks and he threw me on the floor, screaming at me the whole time! I just don't know what to do.. for the past week he has been so distant towards me and just doesn't seem to want to be around me. Any help or advice would be greatly appreciated!