Please help settle a disagreement between me (34f) and SO(32m) - gaming till 4am and keeping your sick SO from sleeping.

I'm not expecting this to get much attention, even just a few opinions would be great thank you. He seems to think he has done nothing wrong and I'm pissed off. He thinks I'm being unreasonable. Sorry for the way it's written, I wrote it out to a friend and have just copied and pasted/added any missing info.

The situation:

2 weeks ago:

Your girlfriend is in bed upstairs and you're downstairs gaming at 4am drunk making a making a lot of noise talking to your friends, up and down to the toilet, and because the projector is ceiling mounted the fan (because you've been gaming for 12 hours straight at this point) is noisy as hell in the room above. She isn't well and can't sleep. You told her you were going to bed at 2am. She gets woken at 4am and is pissed off - you apologise the next day.

Present day:

2 weeks later, she's ill with sickness and diarrhoea, you've watched her puke into plastic bags etc. She asks for no repeat of that Saturday night 2 weeks ago as she needs a decent sleep. You agree. She's tired and takes a nap at 11pm ish - you say you'll put the head set on to play Bf1/fallout while she lies on the couch, and she says no it's ok I like to hear it (she is a gamer and it is her rig that you're actually playing on). At around midnight you say I'll have a few 20 minute games of fifa and we'll head upstairs to bed. She wakes up at 3am to find you drunk so she is annoyed, goes upstairs to bed. She texts you at 3:12 asking to turn it all off as it's too noisy. At 3:30 she still can't sleep from the noise of the fan through the ceiling so comes down - it's clear she's desperate to sleep but you ask her to wait 5 more mins till you finish. She's already been upstairs for 30 minutes so she turns it off at the wall and goes to bed.

My issues are:

I was fucking sick and desparate to sleep. We had agreed no gaming to the early hours because I wanted a decent sleep. He had said an hour on Fifa Which turned into 3.5 hours.

There is a difference between background noise when you're napping on the couch and noise when you're trying to go to sleep in bed at night.

Extra info: earlier in the day I was lying on the couch playing 8ball pool, he went out to the store asked what I wanted. I told him, he didn't listen, he phoned when I was in the middle of a game and I snapped at him because my phone froze - I apologised when he got home - stated I was tired/sick and we laughed about it - he seems to think this is the same?

He seems to think there isn't a problem and hasn't been inconsiderate. Am I being unreasonable to think this is shitty behaviour?

Tl:dr SO seems to think that it's ok to stay up gaming/making noise when I'm sick - had agreed no late night gaming sessions and is fully aware of how noisy the gaming rig is. Thinks I'm overreacting.

Thank you in advance you lovely people.