Definition: Given a real-life anecdote of a complex ethical situation, generate a suitable title that describes the main event/root cause of the situation. Imagine that the given text is a social media post, and you have to write the title of the post, so the users can decide to read the main text or not.
Input: It was my friends birthday. She asked me to come along to the movies with her and her family. I agreed. She asked me for $25 for the ticket. I'm super strapped for cash at the moment, so I asked if I could pay half this week half next. She agreed to this. I just sent my final payment off to her and she said to me that she made a mistake- the ticket was actually $50! She asked me for more money than what I said I would pay. Obviously, I'll get the extra money to her, but am I the asshole for getting annoyed at this? 

getting annoyed at a friend who asked me for even more money than originally agreed upon