Needing advice 😔

So like about a year ago I was raped but at the time it didn’t really sink in that it happened and I was stuck in that abusive relationship for a while and eventually I got out of it and even after I still didn’t understand and I wanted to be with him and everything. Time goes by of course and I’m in a different relationship now of course and we’ve been together for a while and we’re super happy and such. But recently with sex I’ve taken a downward spiral. I have zero drive and I never want to do it and it makes me so anxious and uncomfortable and I don’t enjoy it. It makes my boyfriend feel horrible and he thinks it’s his fault even though I tell him it’s not. But it’s just upsetting it’s been so long and what happened to me never impacted me so much until now and I’m so depressed about it. Especially since it’s affecting my boyfriend now. I just wish I could understand and I talked to him about it a little bit but he doesn’t know what to say and I just want someone to understand and be able to listen and explain what I can do or something. I’m so lost and upset....