I wouldn't break up with someone just because they were insecure. When they tell me to quit my job or something like that is when I break up with them. Because otherwise we can talk it out.
A) What's wrong with making more money than your BF? If he feels insecure about it, he can either get a better job or deal with it.
B) Why should you break up with someone because they feel insecure? Breaking up will make him feel even worse, and unless he somehow puts her down for earning more or wants her to get a worse paid job, I don't see any problems that can't be solved by talking.
B) Why should you break up with someone because they feel insecure? Breaking up will make him feel even worse, and unless he somehow puts her down for earning more or wants her to get a worse paid job, I don't see any problems that can't be solved by talking.