Do I sound like a bad friend?

[Blah]

Yeah, you sound pretty awful. I have no idea why she even wanted to be your friend in the first place. You're a horrible "friend". She's shy and quiet, what's so bad about that? Not everyone feels the need to constantly socialize. She's probably as insecure as she is because of the horrible things you say, even if it's a joke to you. She's obviously a bit sensitive, so why do you feel the need to tease her, especially in front of other people? She's probably a really cool person and in a few years time you're going to regret the way you've treated her. You need to grow up. If anyone's socially stupid it's you.