Tabletop RPG's (D&D)

[Jesster]

The names were Cora for the witch, and Gwen for the Magus. IT's not like they were crazy names.  Or even difficult ones!
He just didn't want me to pick a new name for the Magus, and to keep using Cora.  I told him, CORA was my human witch, and not the name of a half-elf Magus.

Nothing about being nonsensical.  He just wanted me to keep using the witches name, but to me, the name is part of the roleplay, and that name belonged to a different character.

I don't really understand the importance of that demand, and I've ran several games before. I've had to step in the way of a few ideas, but nothing this trivial.

Random tangent here, but does anyone play online on sites like roll20? I prefer to play in person, but I'm always curious about my other options as well.