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: Sister is 22, I'm 25.

My sister graduated from college in the spring and my parents told her she would get a graduation trip, which basically means she gets to pick where the family trip would be. She picked a European country.

Our schedules have conflicted a few times so the trip hasn't happened and it's not scheduled to happen. My wedding is happening next year, which has added another conflict. I scheduled my engagement party for her fall break (she's in grad school) and my wedding for her spring break so she will be able to come to both and help out and do the whole maid of honor shindig before the actual wedding. I feel I was considerate in doing this so it wouldn't interfere with her studies.

We are on a family trip now and yesterday we had dinner with our parents and she asked about her graduation trip. My dad told her that because of the scheduling and such and because of the cost of the wedding, this would be her graduation trip because a trip to a European country is not financially feasible and the next time we will be able to schedule a family trip will be in the summer of 2020 at the earliest. She started crying and told my parents that they always play favorites and that they are picking me over her. She also said it was unfair that I got a graduation trip and she didn't. I told her she was being a spoiled brat because she's not entitled to this trip AND my parents paid for her to study abroad in college and I didn't study abroad so she should be grateful she got that experience. She got up and left the table. AITA for reacting this way?

calling my sister a selfish brat