I have a friend who is brilliant, and absolutely beautiful, and successful, and she is married to a guy who is a jerk. Who doesn't appreciate her. I won't go into details about it, but let's just say to any objective outsider, you'd have to say, "Hey, why are you bothering with this moron?" He's handsome and successful, but that's about all he's got going for him. His behavior is totally unacceptable.
You realize though that events have to play themselves out and eventually life has a way of getting where it has to go. It's hard when you're watching though and you want to say "Kick him out already!"
It is so much easier to look at someone else's relationship, isn't it?