Is it bad I think of this when I orgasm?

I think of my boyfriend having sex with other girls. This fantasy literally started after I found him messaging with girls and seeing him watch porn. I think it’s because I know he would like it? Idk but I hate it.

It makes me think that I did forgive him for what he did but I’m dealing with the repercussions of it. & sometimes I cry after orgasming to these thoughts but it’s the only thing that makes me orgasm now. I cannot orgasm any other way! I’ll take up to an hour trying to orgasm, but I’ll take 2 mins to orgasm this way.

😭 should I just break up with him? It’s been YEARS too.