Just wanted to add that this is an amazing story.Looking back over the last few pages, we've moved from "player who always plays the same character" to "player who always plays the same character, and torpedoes any game that won't let them".
These are not the same.
maybe a tangent:
A good friend back at school rode his pushbike into the back of a van. Fractured his skull. He recovered, no problem, but it took a while.
During his recovery, he continued to play in our D&D game. (Once he was well enough)
He played an elven ranger called Jethro Tull. Multiple times. Over several character deaths, change of campaign ... I think he tried to play him in Call of Cthulu ...
We gave him lots of slack.
Where the boundary lines are between Fractured Skull, emotional issues, personal preferences, just being an arsehole ... that is down to you and your table.
I think my point is: Cut people some slack.
Oooh! And if you play your cards right, you can get a pen with your character's name on it!
"Sharpie casts magic missile at the troll. ""It's just that I'm so into your game that I ordered a pen with my character's name on it. Yup. Praise me."