Why can’t I be one of the men that would pass women around?

It always been an presents in my life as long as I can remember as a child playing house with the neighbors daughter I couldn’t let any other kid be around the girl I was interested in, then even later than that in jr high I had so called friends that would want me to pull train on a girl that’s supposed to be their girlfriend, and I had a supposedly best friend that wanted to pull a train on my girlfriend at the time and now in real life part of being an adult the way the world works is to let your wife or girlfriend be used by other men and women? I guess I just don’t give a F£%~<£K.