Well last night we got into an argument because I had hung up the phone by accident then when I called him he ask me then I hang up I said yeah but I was trying to be funny but he threw it overboard. Then he tells me you are going to loose a good man.

Sounds like some people are a little immature...

Hard to say for sure though based only on what you wrote here.

He wants you to be more serious or you will lose him. Most people see getting hung up on as one of the top 10 forms of being rude and inconsiderate. You hung up twice over the same thing, he may even feel you are trying to be evasive or taking the situation too lightly, which serious people do not like either

I have no idea what your title question even means? You sound pre-teen.
Yes, I agree with him, regardless. You are going to lose him, good man or not.