No, it sure isn't a lot of money. But he's the one who decided he could set up a household on that meager salary. It's not up to anyone to throw him anywhere. Where was he living before he got this apartment? Maybe he needs to go back there. He needs to figure that out for himself. He needs the dignity of making his own decisions, living with the results, and figuring out what he needs to do differently.

He and the girlfriend will figure something out, if people just leave them to do that. Trying to figure out how to pressure the girlfriend is not the role anyone should be playing. She is going to do whatever she wants, and that is her right. He's the one who has to deal with that.