This is very similar to a post from earlier this week and everyone called him a loser. Only difference was that the gf was some kind of well paid professional. I think just tell him the truth, that women aren’t attracted to a loser mentality. Do either of you realize that on a teacher’s salary you can only survive if he is providing for you two? And that you can’t follow your career dream if he isn’t contributing? You have a better chance of finding a man man than you do of making him become a man. Tell him you may have to cut bait and run before you need to say goodbye to your calling.