Its be for not before. And the girl doesn't want the guy to leave and go on tour because she feels more secure when he's around and she is going to break up with him if he goes because she doesn't want to be alone and he doesn't want to lose her and is trying to tell her that if she just waits until he gets back to decide she won't want to break up with him anymore because he'll be back and they can talk about it and work things out and they can make it last. Tah-dah.