Why do men tend to break up with their girlfriend/wives after receiving an expensive gift from her?

Being a man, it does feel a little strange when your girlfriend tops you in the money/job side. As a man, I like to provide for my girl as much as I can and I want her to look up to me. I think sometimes when women are more successful than men, they tend to be very arrogant. Being independent is fine, but some successful women don't understand the words negotiate or compromise too well in a relationship. They tend to not act too lady-like and that is just not sexy to us. I don't need any expensive gift from my girl, it doesn't make any difference to me. Most men just like to feel that they are superior. It's just the pride thing.

For me I dated a girl that was I guess successful? Or from a wealthy family and had hookups through her job? I felt like I couldnt provide her with anything she coudlnt get herself already so I lost interest and we stopped talking after 2 weeks. Although her showy attitude did annoy the hell out of me.

answer mine please:

http://answers.yahoo.com/question/index?qid=201107...

he may be lace of the self-confident to do more to satisfied with the girl and in his mind , he think girl should not emphasize his money.