1.) Degrees are pretty much wortheless, now. I mean, you can't seem to get a job without one anymore. but you also can't seem to get a job WITH one anymore, either. things that used to be available to those who finished a 4-year program now require a 6-year degree. those that used t require a 6-year degree now require a Doctorate. it's perfectly understandable that she would rather be making money now than busting her a** for a piece of paper that doens't guarantee diddly squat.
2.) I think it's bullshit of her to say that you had it easy. none of this is easy for anyone. it's not easy for her, it's not easy for you. nobody should be comparing eachother's success.
3.) friendship takes work, like ANY kind of relationship. you have to bth want to put in the effort, and you can't just give up because there aren't immediate results. that said, if somebody isn't pulling their weight, nothing will ever get accomplished.
4.) all you can do is decide what you are and are not willing to put up with. and the same goes for her. if it's not working out, you can either both really try to work together to make it work, or you let it go and move on. break-ups are sad, painful, and hard. but sometimes it just doens't work out.