Last night, my dad was using one of my cups that I was given for my birthday. It has my initial on it and he had put beer in it after I left it on a table with some leftover soda and he cleaned it out. I saw that he was using it and got upset, and went “why would you do that?” In a loud voice . I also said that he shouldn’t have put beer in it because it stinks. He responded with a couple of different things: “is your name on it?”, “I’ll pay for it how much was it?”, just laughing at me, and saying how he was just the worse for it. I was crying and kind of just gave up on the conversation because I realized it was pointless. I know it wasn’t the best reaction, I stopped arguing with him because I realized it was only a cup and also that me saying anything wouldn’t really make a difference. For context, I don’t like it when others use my cups, I like to have one that I stick to and if someone else uses it I don’t really feel like using it anymore, this cup was a birthday gift so it upset me more than normal. And my family knows this but my dad tends not to check when he takes a cup and so a lot of my cups have ended up being his because of this. I am used to this happening but I thought this one would be safe because it has a huge initial on it for my name. After this argument though, he came downstairs with a suitcase and he said that I wouldn’t have to worry about him taking any of my stuff anymore and he left. My mom was in the room and I do have a little brother too but he singled me out before he left. I know I overreacted to the cup but I’m wondering if I’m the asshole in the situation. I don’t really like my dad because of some stuff from when I was younger but I don’t really know if that matters in this situation. Thank you for reading Edit: I feel like it’s important to say, I wouldn’t react like this to anyone outside of my family. Also in general I don’t react like this, this time I slipped and it’s still not okay but a lot of people are assuming that I’m like this about a lot of stuff which isn’t the case.