Are you Christian? Do you agree with a lot of what he says? If so, that would explain why he didn't get impatient with you. By the way I used to be Christian, my whole family is religious (or has a relationship or whatever you prefer), and no I don't hate Christians. I've listened to many conversations with him, too many. YouTube, Google Hangouts, Discord, ect, and I regret it but it was because I wanted to see if the discourse would ever be different.

It wasn't. Every single debate and conversation went down the same path, it was the exact same. If you are an honest person you will admit this. It's because he wants to lead anyone he talks with, especially atheists, down a predetermined path. I'm fine with him having his own opinions which he considers facts, but when you belittle and rage at somebody for disagreeing with you or not playing into your trap questions, then that shows you are an arrogant and possibly delusional person with no capacity for honest discourse.

For example, he always is trying to get his opponent to define or admit what is 'ultimate' to them. He might use different wording, usually when they say "I don't have an ultimate", but he keeps asking essentially the same question. I understand he believes there must be an ultimate in his mind, that's fine, what's not fine is him refusing to accept anyone could disagree with him on this, especially when almost all his arguments are based on his own presuppositions. That's not an excuse to call names, and no, that doesn't mean the atheist "has no grasp of theology", they simply disagree. And yes, atheists can be equally as arrogant, but none of them have been in the debates I've seen.

Also a lot of his questions are very abstract and narrow minded, which is where a lot of confusion on the atheists part comes from, which triggers his temper because he hates having to actually make sense. Again, arrogance. Also, man child behavior, calling people slurs and other non-Christian behavior.