This definetly needs more explanation. Today when I woke up my mom told me that were going out to an animal expo with my brother, my mom, and my moms friend. I just woke up and am very groggy, so i just brush it off until later.
I did have plans today to spend with a few of my friends what I have planned for a while as Im currently out of time for videogames for irl reasons.  So ffw later into the day, im playing online and my mom comes in and says "Lets go!" and explains she bought tickets for me. Remember, she did NOT tel me before on what this is or what were doing, so I start an argument saying that I want to stay home and that she should have told me before. She then calls me an asshole and my brother calls me selfish. She was well aware that today I wanted to spend with my friends and that I dont usually get to do these things. Now my mom is really pissed and my brothers being a brat as always. Am i the asshole here?