Being in a relationship at least for me is a different world because the women will be different but this may not be the case with some guys out there who are more open. For me, there are some qualities in a civi woman that would make me want to be around her even after sex whereas with SPs, I don't really want to be around after the fun. Also as already said, there are things I might do with a SP that might freak out a civi woman. So different worlds and each has a time in life. But this also differs depending on where in the world you are. Here in the western world, if you are hobbying and in a relationship with a civi, there's a cheating aspect. In many parts of the world this type of thing is almost normal as the guys there have both since it's normal in their culture for a man. Kind of envy them for that!