So a few months ago, I let my friend borrow a ten-dollar bill when she needed five to buy lunch, and then later another ten to get me something from Taco Bell. She said she'd pay me back the first time, and then didn't get me anything the second time and said she'd pay me back. I trust her, so I didn't say anything for a week or so. Then she started buying things like a new phone case and a new vape pen, and even though it's not a lot, I was still annoyed. I started asking her when she's pay me back, and she was kind of snotty about it and said that it was my problem. I was upset and started asking her everyday, and she one day waved a 20 in front of my face at work and then said that if I stopped mentioning it, I'd get paid. I did, and still nothing. I've started making snappy remarks back and leaving notes for her about it, and my friends have asked her about it too. She complains that we're too annoying and she should take more money because I'm stressing her out whenever I mention it, but she's still annoying herself about it. AITA?