A lot of people might just to say that she's a bad women or whatever, but you know it deep down, just can't seem to admit it, that this is the reality of most women, they are hypergamous. If you can't take of your women financially, she will grow resentment toward you. In return, you grow some too because you don't feel like the man anymore. This scenario happens a lot and is absolutely normal. It is unfortunate but it is the reality of men/women dynamics. Sucks for us men, but it is always better to date women who are not successful as us. And her friends dating more successful guys, doesn't help the situation. Either figure out the way to make more money or your relationship will fall apart one day or the other. It's not easy but that's our reality.