I once faced the same situation. I briefly dated a sorority girl in university that was extremely wealthy (picked her up at a keg party that was thrown by my fraternity). We were about the same age (I was probably a couple of years older since I started university late so I could work for a few years first) and she was really into me. She was good looking, nice body, and great in bed, but there was no spark for me. I tried dating her a few more times, but there was just nothing there, so I ended it. My friends told me I was crazy, but I couldn't be with someone just because they had money. I was the absolute epitome of a starving student at the time, but I can honestly say I wasn't even tempted to stay with her because she had $$.
My wife and I were both broke and massively in debt to student loans when we got together, but we weathered the financial storms and it made us stronger as a couple. We live a comfortable life now, but we are by no means rich. I never wanted to be all about money (probably because I saw my father and brother always chasing the almighty $ and it made me realize what I didn't want to be like). I know I made the right choice because I love my wife more than anything in this world. I would have been miserable staying with someone I didn't love just for the $$ and I would have felt like a two bit whore if I did it. It wouldn't have been fair to me, and it absolutely wouldn't have been fair to her. While she wasn't the one for me, she deserved to have someone love her for who she is, not how much money she has. I haven't seen her in over 13 years, but I truly hope that she has found someone and is happy. Everyone deserves that much in life. My integrity, pride and self respect is far more important to me than any amount of money.