It all goes to that one pic someone edited of a super-hawt model chick in a bikini with the caption that says, "Somewhere, some guy is totally sick of putting up with her BS."
No amount of physical beauty can compensate for a crappy personality and/or psycho issues. My last girlfriend was a gorgeous Aussie redhead, but she had wayyyyy too many issues that I couldn't work around, help her with, or try to ignore (we're still friends, but I now have the Pacific Ocean separating me from her daily emotional drama, heh). A chick can straight up look like Kate Beckinsale and let me PIITB daily, but if she's got a personality like Paris Hilton, I'll let some other silly sap deal with that craziness. Remember, when old age takes away the poonanny and the beauty, and you're both all old and wrinkled and toothless in a nursing home, you've still gotta be able to put up with that chick ... unless you're a filthy rich oil tycoon or something, in which case you can hook up with a young n' dumb 20-something and promise to write her into your will if she plays nice with you.
In the meantime, I'm happy to say I've got a chick that's drama-free AND hot.