Holy shit, you're me when I was like 18.
I used to be romantic and I still am, but dammit I am all done with girls who are takers. Take, take, take... Usually really hot, spoiled and coddled, they are the center of their universe. SO done with that. Many times they have no idea they're even doing it but man does it make you feel like an accessory or a pet. Done being a tool of someone else's destiny at the cost of my own.
Probably a dozen relationships later, I still haven't found a girl who is treats me good enough to marry her. Fortunately I'm valedictorian of being single and do very well, but sometimes you'd love to have someone there for you and all the nubile college hotties in the world can't drag you out of that bummed feeling that it's not there.
So yeah, don't turn into a douche. It will get frustrating but just do your thing. Someday nice dudes like us will find an appreciative chick that buys us dirtbikes. Well, I hope anyways. Until then I'll be kilin it as a single guy on top of my game and loving every minute of my awesome life. Ya can't keep me down ;)