Why do models hate themselves?

I mean, I know why we, the general public, hate them, but I never understood why someone who should have her pick of men would choose the oldest, ugliest or douchiest of the bunch. Perhaps it's the whole pretty on the outside, ugly on the inside thing, and that these women, despite receiving all the validation in the world, can't see themselves the way the rest of the world does.

Here's what I'm getting at. Miranda Kerr, model, looks like this:

For a while, she was dating Orlando Bloom, who looks like this:

Now the rumor is that she's left Orlando for Brandon Davis, who looks like fat Elvis this:

And who acts like this:

Perhaps it is not for me to understand, especially when there are much more important things to spend my time thinking about, like the fact that Orlando Bloom is single. (Call me!)