A some thousand years lasting teenager phase? Poor elf parents
I was just thinking that but then I realised that Windkin is a teenager in the first raid for the little palace and he seems really nice then! I guess he's made up for it later. But then, he's also at his moodiest in Wavedancers, it wasn't that bad in New Blood.
I was thinking about the episodes just called 'Windkin' and it struck me how suiting it was to see him on his own. He is technically a loner; there's no one else like him. He was an outsider in the Sun Village and he actually doesn't know most of the Wolfriders. I guess that's why he was sympathetic towards Door - maybe he was looking for a mentor like Door was looking for an apprentice.