No more rough sex.

My fiancé and I have been going through a rough patch lately. We stopped having sex, due to him picking up masturbating to porn. We talked about it, I cried. He also cried and said he felt bad for choosing porn over me. So he stopped. We have now been having sex more frequently, definitely more passion driven, BUT some things are different. We used to have crazy, biting, spanking, hair pulling, tied up, rough sex. Now we don't. At all. I asked him why the dynamic of our sex life has changed after 3 years of being together, why now? I think things have changed due to the fact that while on a "break" last year, he had sex with someone I truly dislike. You know, THAT girl that your intuition just kicks in when ever you'd see her? Yeah. Anyway. I think the reason that we stopped having rough sex has to do with her. Not sure how, cause obvs I DON'T need details.. but I think something triggered him about 4 months ago. (April. April is a bad month bc that's when we were on a break and THAT happened). Earlier this year, we were experimenting with anal. Which is something I've been worried about. But I was willing to try. I feel like I'm ready but now, he says he doesn't want to do anything like that. No rough sex, no anal, no experimenting. Just, our go to's (missionary, cowgirl, doggy) which I love, I do but I miss being tied up, choked, ect. I asked why he won't do it and he said that he just doesn't want to hurt me. He doesn't want to put me in an uncomfortable situation. He wants to love me and make love to me. He isn't saying he'll completely stop doing xyz, for good but he wants a break from that at the moment. At this point I feel like I've done something wrong or something is underlying but I don't know what. I'm not saying I hate the sex we have now, at all, I just wish it wasn't so predictable. Am I just missing the part where he's being sweet about our sex life? Am I being selfish for wanting more? I don't know what to do/think!