I have only had one sex partner (my ex) and now I feel disgusted with myself for sleeping with him all that time because he treated me badly and I went along with it. I am overwhelmd by the feelings that he owns my body or has "left his mark" on me because is the only one I've had sex with.
I'm not going to have sex with another guy just to erase these bad feelings, I'm not like that.
But I don't know what to do.