Last night I cheated on my boyfriend with a man I have a class with. It's killing me inside and I know I shouldn't have done it, but see I have a need to be dominated sexually and my boyfriend is so sweet and can't give me that. This man can and did, he was hot and rough and left bruises that now I have to hide. I'm miserable but it was a mistake that will never ever happen again, I love my boyfriend so much and it hurts that I betrayed his trust. I just wish I could have rough monkey sex with him and not fantasize about other guys. I regret the trust breaking, but I don't regret the sex. It felt so good. I'm a terrible person.