Most Helpful Guy
This is why it is a bad idea to try to remain friends.
Most Helpful Girl
Maybe he has issues and problems in his life so is responding in an angry manner when he talks to you.
I can't understand why you'd want to keep in contact with him. Friends don't treat you mean, or if they respond in an angry manner for whatever reason , and they know it's upset you then they'll apologize and speak kinder to you