Yes, whatever is going on with him does require professional help.
You know what it sounds like, when he is talking to you, more like he is talking to alcohol.
“I wasn’t going to hurt you, I just wanted you to come outside and pull the trigger on me because you have been killing me slowly.”
This sounds more like a song lyric or a poem rather than a defense. Oh and boo hoo as well! I pointed a gun at you and it's all your fault! That is so much backward thinking.
So what is your plan going forward (if you have one)? Also, do you really want to stay in contact with him at all?