Odd. Why are you the one who cries? In your situation, it's clear that the guy doesn't even care if you leave him or not. Imaging asking you "does it hurt?" What kind of question is that? And you even answered! You're just not in the right mind at the moment. You don't need to explain EVERYTHING to him, tell him that you want to break up with him, summarize your reason and say it him. You can even use "leave me alone. get lost, i want a break up.." and your summarized reason and then WALK AWAY. No need for you to wait for him to answer and make a fool out of yourself, crying. If he doens't agree with you, let him prove that he is worth keeping. It's that simple.