Is AUTHOR wrong in the post ? POST : Ill try and make this as short as possible.

A while back i (22) was on holiday in Thailand with family and my boyfriend (23) stayed home. He offered to pick me up at the airport the day i arrived back home.

However, the night before i was meant to fly back he notified me that his old friend (and also old FWB) was in the state and she asked if he wanted go visit her, he accepted.(note: he is originally from another state and met her there a few years back. She has family in the same state we currently live in. With that said, her place is still a good 2-3 hours from his place)Anyway he tells me he is going for the 2-3hour drive down to catch up with her, to which i was fine with and said i hoped he had a good time catching up and whatever BUT it was the middle of the afternoon when he started the drive, i figured he would be there kinda late so i nicely asked that if this catch up went into the night, could he please not stay over at her house.. he agreed

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ffw a few hours, im at the airport nearly ready to board my flight and i get a phone call from him, completely drunk and telling me he has no choice but to stay at her place, but he assures me hes staying on the couch. I lose my shit (tbh i really think i had a valid reason to lose my shit at him for being drunk and staying with a girl he used to sleep with). He says he cant do anything about it and that is just going to have to be that way but he has set an early alarm so that he can still make it to the airport in time to get me in the morning.

The argument/all contact got cut off because i had to board my flight so i was stuck with a disgusting sick feeling in my stomach the whole 9hour flight back and honestly was in no mood to even deal with him once i had landed.

So i arrive home and true to his word he was waiting at my arrival gate to greet me, i however gave him a wave and just proceeded to follow him towards where he parked the car. The entire ride home was awkward, he was making small talk asking how i enjoyed the trip but i couldn't bring myself to pretend nothing was wrong. So not yelling or anything i asked how he thinks i'm expected to be happy to see him when the night before he was drunk sleeping over with his old FWB after i specifically asked him not to and he had agreed. I confessed the whole 2 weeks i was away i really looking forward to being back with him as i had missed him a lot but this whole situation had ruined that. He proceeds to argue that im overreacting and that i should have more trust in him than that. Says hes sick of repeating that he didn't do anything with her and that he crashed on the couch. He says that its my fault our reunion was ruined because he has done nothing wrong and he was hurt i didn't give him a hug or kiss at the gate when i arrived.

In the end i honestly was not bothered fighting with him especially since i was insanely tired after the flight so i just apologised to end it. But to be honest i really don't feel i was the one that was meant to say sorry though.

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So AITA for getting mad at my boyfriend after he got drunk and slept over at his old FWB house after he said he wouldnt.