A few points for your consideration:
I believe this goes back to our ancestors in the Ice Age. The douche bags were the ones that went out and hunted Woolly Mammoths, because back then there was nothing more bro-tastic than killing creatures for meat. Often times they would perform a ritual to sanctify and imply domination of said kill. (This ritual would later evolve into what we now know as the "T-bag".) Natural selection dictates that the man who brings in the most meat to provide, is the best partner.
Furthermore, many women are under the false impression that they can "change this douchebag of a man, into a wonderful caring human being." This viewpoint is very similar to a common delusion held by males in that "When she's talking about her feelings, she obviously wants me to give her constructive criticism about how to fix all her problems." These views will only invite disaster.
Vohn_exel said:
My brother tries to get me to change who I am all the time to get a girl. But if I ended up with a girl that loved me for something she thought I was, it wouldn't be a great relationship. If they don't love you for who you are, it's not really love, is it? I'm just like you are TC, and hopefully I too will one day find the girl that's right for me. I can't be anything but what I am, and I hope that one day I'll find some girl thats insane enough to want to live with that forever

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True, but you do want to get some relationship experience under your belt while you're young. Your WILL (and I know this sounds horrible) mess up your first couple of relationship. This way, when you do get into a relationship with someone you really like, you will have learned to avoid (most of) the pitfalls that would have otherwise spelled doom for your relationship.