Why is this girl being such an IDIOT?

She's not being an idiot! YOU ARE! You've admitted you are ignoring here and she can't understand why! Why do you think ignoring her is being nice? And she doesn't understand you're feelings because you aren't talking to her! And that was offensive - you are suppose to be her friend and you are taking the piss out of her. She's not being disrespectful, you are being ignorant and until you talk to her that isn't going to change!