For background, DH has a brother in law, Brian, who is quite pedantic, he likes things his way, he doesn't like windows or doors open or unlocked, even in the recent hot weather.
DH and I today have had a nice day, went for a long dog walk and made a nice dinner, watched a film etc but towards the end of the day we were both feeling a bit bored.
DH asked if we could go to bed early tonight, it was 8:30, I said fine shall we finish watching this program and go up at 9? He said "I have to be up really early" so I said should we just go up now then, but I was slightly irritated because we ended up having a conversation about it with him being a bit funny with his answers to me and me having to guess what he was hinting at instead of just saying "can we go to bed now as I have to be up really early".
Then, I was locking up and he had a moan at me about where I put my keys for the night and that I shouldn't put them there, I should put them there instead, and how I didn't lock the bolt properly. I didn't really say anything to him about it in reply.
He went upstairs before me, and as I was walking up he called to me "I wish you'd be a bit more security conscious" and I said "what do you mean?" and he said "you've left all the windows open up here". Five windows are open, 3 are just on the latches so can't be opened more, one was fully opened by him and one by me. I told him this and he started saying "don't come crying to me when someone robs you" and I just snapped and said "sorry, Brian"
He called me a sarcastic bitch and then he called me "Doreen" - my Mum's name. He said it was disgusting that I'd called him Brian and that I'd really hurt him. I said "Look, I'm sorry I called you that--" and he cut me off and said "you need to apologise to me". We got into a stupid, petty argument then with him saying "you need to apologise to me" and me saying "I just did" over and over, and writing all this down it just sounds absolutely ridiculous. He told me I can fuck off and that he doesn't accept my apology and went to get in the shower. I changed the bed sheets and when he came back I apologised again but he still told me to fuck off and that he doesn't accept my apology as I really hurt him. I left him for half an hour watching TV in bed while I came in another room and then tried apologising again but he said the same.
I do feel bad now for saying that as I only said it because I was annoyed and my temper flared, but I felt like I had kept my cool about the stuff before and having a go about open windows, when it is still warm and stuffy here, it just pushed me over the edge and I snapped at him.
AIBU or is he? Or are we both just BU and childish? He's gone to sleep now, what should I do in the morning?