It sounds like you have been with him and not just on line then? If you were in a situation where domestice violence occured it can be hard to have a sense of self worth. But you CAN build that self worth in yourself even if your parents failed to provide you with a sense of worth from them, they are just people after all, not the way to base all people by or even your self worth.

You say that this relationship with this much older man is just for sexual reason?
Why? Why not invest in yourself, further your education and be an independant person, for YOU? You are young enough to have a rewarding life, YOUR LIFE.
It really sounds like this person is not the direction you should continue to waste your time on. Set better boundaries and goals for yourself, because it doesn't really matter who, or what your parents are, you can be someone on your own. That is what you should work on first, rather then being some older married guys sex toy, which, when he get tired of YOU, he will just turn to someone else, just as he is doing now.

You need to stop wasting your time with others playing on your life, take charge of your own life and set higher standards for your self.

Open Eyes