Multiple?
Maybe it's not them... Maybe it's you.
I'm not saying that I didn't, at some point, do something to allow that to happen. But it's not that there's something wrong with me as a person. While I appreciate the, "hottie," compliments, there is much, much more to me. I've never depended on my looks, or how other see me to get by. Quite the opposite. I"m not perfect, but I am intelligent, focused, loyal, and honest.
Where I do claim culpability is choosing the men that cheated. I knew in my gut that something was off, but I ignored it because that initial infatuation was so amazing.
To say that everyone who is attractive is high-maintence, or somehow lacking substance is an undeserved stereo-type. Get to know the person before coming to any conclusions about who they are.
And your points on people getting by on their looks, therefore not working on themselves as individuals is true for both men and women. I've known more than one man that has been told how good-looking he is, and uses that as a way to justify some truly apprehensible behavior.