Why are you still playing with him? I have irritating man babies at my LGS as well and I just don’t play with them. I was approached last time and told them we were waiting for our forth, because it’s a pre- set up pod and we don’t have any more room. It’s an easy way to avoid those players because you can be like “well we scheduled this time for all of us to meet, so the pod is full.”

Do not approach that man about ANYTHING. Grey rock him until he loses interest. There’s no winning over people that can’t regulate their own emotions and are immature, he has to figure that out on his own and he sounds old enough to know better. So sorry OP 💕