Mike: Look, B. The only person who can keep you from achieving what you want in life is you. If you can't trust yourself to stand up to Eliza and her parents then maybe you're not mature enough to be getting married.
Brandon: I don't want to lose her.
Mike: Then you're going to have to grow up really fast because the only way you can have her is to choose yourself. If you can do that, but if you can't, you're going to have to call it off.