this has been going on for almost a year now. i attributed it to a crush, like you said, until i learned about her taking pictures of me while i'm sleeping. i still go out of my way to avoid her, but it's just extremely uncomfortable being in that house. i guess i'll have to talk to my friend about hanging out somewhere else.
ffs why can't you just put all the details in the OP up front lol
Why does it make you uncomfortable? Sure, she's weird, and if she's taking pictures of you without your permission and that bothers you you should confront her about it, but this still sounds like a massive over-reaction. Chances are, if you were more comfortable around her, she would be more comfortable around you, and the weird behavior would stop and you wouldn't have to do any crazy weirdo stuff to continue being friends with your mate