I can understand this completely. I'm finally in a non abusive non destructive relationship, but when we get intimate I feel like my thoughts about sex tend to drift toward the violent or rough side of things. I don't like that about myself either.These thoughts are what brought me to the forums. I can't have sexual fantasies unless they are abusive. And then my guilt over what turns me on makes me sick. Especially when i'd rather use my fantasies then enjoy my partner.
My first sexual experience was with my abuser, so I guess for awhile the only sex I had was violent. Maybe that what the others are saying is right, that our minds are trying to make it ok somehow?