Before anyone says anything I know this is totally first world problems.
DP and I were booking a holiday this evening. I'd spent a while putting all the details in, checking everything, dates, going through different hotels and packages etc etc, finally found one that suited everything we wanted. DP had sort of zoned out by this point on his phone but I showed him some pics and the location and he agreed I should book. I went to the booking page and there was 1 room left for the dates we wanted. He then also decided to go on the same booking page on his phone with all the right dates etc as he wanted to 'check the price'. It came up showing as the same price as I'd got it for. I then asked if he could please close the webpage as I was about to confirm and pay for the room, and I was worried there'd be a glitch with us both looking like we were trying to book the same last room.
He then became annoyed that I was trying to 'control' what he was doing with his phone and this led to an argument. His view was that the website wouldn't crash and I was being ridiculous. Mine was that he could've shown some support as I was just trying to get the room secured.
AIBU..? (Seems petty even writing this out)