Hermit

Someone who stays in their room all day avoiding social interaction because they’re antisocial and have social anxiety. They’re funny and open around their friends but are weirdos and loners around people they don’t know. They also have a low self-esteem. The hermit thinks that everyone is judging them but secretly no one gives a rats ass.

M: “Hey who’s that?”
M: “Bro, it’s the hermit of the class, she’s a weirdo, don’t even try.”