I have this strange liking when I am in relationships. I like it when my girlfriends cheat on me, and/or finds other guys more physically desirable. I have 24 hour Endorphine rushes thinking about it when it actually happens. I have been cheated on a couple of times and it didn't bother me at all. Instead I found it to be a turn on. Is this normal, or is there something wrong with me? And no I am not gay or bi. I am 100 percent hetersexual. And yes I am aware of the risk of HIV which could be a problem here.

Jim