I am a 21 year old heterosexual guy and I am not attracted to girls in any way anymore. I never had any satisfying relationship. I think relationships only cause problems and there is no such girl trying to be truly there for you. While others guys fuck around like crazy and go partying I spend every day at the gym. If I could choose between "having a different women every day for the rest of my life" and gym, I would instantly choose gym. Also I reject every girl that appears to be attracted to me. Whenever I am horny (which is rare) , I pay a prostitute.