Is OTHER wrong in the post ? POST : AITA? My (28F) sister’s (31F) husband (31M) and I have a difficult relationship. When my sister and he started dating about 12 years ago he came on a family trip and got in the middle of a fight between my sister and me. After she struck me he put himself between her and me and being teenagers she continued to mock me behind his back. When I reached around him to push her he took my head and shoved me down into the bed I had been leaning on.

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Things had been okay until last year while on a family trip to the Grand Canyon. He and my sister are married and have an infant daughter at this point which makes siteseeing challenging. After seeing a few lookout spots over a couple hours we were all in a van together coming up on another lookout. My father was driving and he gets overly dramatic if he doesn’t get clear instructions on whether to stop so we just told him to stop. Everyone decided to get out except my BIL who said he was going to wait with the baby and shut his eyes. At the time my niece was sleeping so it seemed fine.

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My father and I took the longest to return to the car (30 min). When we got there I could tell that my BIL was in a bad mood but I didn’t know why. I guess the baby had started to cry not long after we left the car so he was left to calm her down by himself. We pile back into the car and get on our way. My mother starts doing this profuse apologizing thing that always gets my dad irritated but she was directing it at my BIL. She was apologizing for stopping at the lookout. Not knowing what had happened I tried to deescalate like I’m used to with my parents. I said “it’s fine, if someone doesn’t want to stop they’ll say they don’t want to stop.” Within seconds my BIL was cussing me out. I tried to explain that I didn’t mean anything by it but he wouldn’t accept it. Admittedly I did end up telling him that he’s been a grouchy jerk the whole time, but I had no malicious intent with the original comment.

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Fast forward to tonight, a year later on another family trip. We’re playing scattegories and he’s 20 points ahead of me and almost everyone else. Some of the answers are BS and I challenge a few regardless of who it is. I had a bad feeling that he was going to get mad because he’s competitive so I made sure to ask if anyone disagreed with my answers if they were a stretch. His answer for “Furniture” that start with F was “fan”, and “things associated with money” that start with H was “heap”. After challenging a few of his answers he freaked out on me again.

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I think I’m done coming on these trips. I adore my niece but I can’t stand acting friendly with him after he treats me so poorly. My boyfriend would never treat my sister that way and if he did I would take issue with it. So I’m cutting my trip short and leaving in the morning and don’t plan to participate in future trips with him. AITA?