You know you're a Tumblr addict when... →
When the teacher writes a bunch of mathematical...
Friend: You look really nice today
Me: Awh thanks
Paranoia: No you don't. She's lying to you. It's because you're always moaning about the way you look, she's just telling you to shut up basically. She's taking the piss, and just feeling sorry for you. Of course she doesn't mean it you idiot. In fact she's probably laughing at you behind your back to everyone else right now.