Most Helpful Girl
People like the security of having someone but want to sleep around. Or they're married and can't get a divorce or don't care to go through all the hassle or would lose a lot in the process but don't get sex from their spouse, or don't like their spouse so they start cheating. Or, in cases when they didn't mean for it to happen, they're hanging out with someone and that person makes a move and they get caught up or something. I mean they're still to blame because they didn't stop it or prevent it from happening or such but they at least didn't plan that one. Some people just can't stay faithful. They care about another person but they just can't help themselves.