Need help

I actually posted this question in another forum but perhaps it would be more appropriate here. I love my fiancé very much, but I never get turned on during sex. It feels like it’s just a chore I have to do. And I hate that because I do find my SO very attractive. For a bit of background my first and only other bf I ever had was abusive to me. However, I do get turned on by fantasies of being manhandled with sex being a little rough and I feel sick to my stomach that this is what turns me on despite what I’ve been through. Does anyone else experience this? Does anyone else have any advice to give me?