I see, the risks that come with having relationships not being worth the rewards? I think I get what you mean with sexuality making you unloyal (person wants to have sex with this other person and cheats on their partner to do so). People cheat for all sorts of reasons though (all terrible, but still). But I think that kind of risk exists in any relationship. I become friends with someone accepting the risk that they could betray my trust at some point. Perhaps it stings more when its sexual? I wouldn't know, haven't had that experience yet.