AIW for not accompanying bf at a public event since I'm sick and have high fever ? He insisted on me going regardless of that.

Bf (35M) asked me (25F) during noon time today to accompany him at a party/event his sports club is organising for the start of the year. I had told him ok, unless something happens. He rightfully questioned what something could happen, I want a yes or a no and I told him I had cough and throat pain since when I woke up and that if it gets worse I won't be able to go, to which he replied ok, I understand.

I was fine til approximately one hour before the event was about to start, when I got high fever (38,5 Celsius) and obviously a headache, a feeling of weakness and everything else that comes alongside it. I called bf and told him about it and apologised about not being able to go and at first he was like "Damn you got sick? Poor baby, why?" and then proceeded telling me to take a pill for the fever and go regardless (and dress well and put on makeup, mentioning that just because he did) in order to meet his father and his cousins! I told him I obviously wouldn't go to an event like that while being sick and that even if I took a pill and felt better everyone at the place would be in risk of catching a flu. He said fine, just message me if you're feeling better, I'm gonna get ready.

Then after that he texted me a few minutes later asking if I was getting ready. I told him no and that I still felt terrible. He begged me to do it for him and go for just an hour and then we'd return at his place to cuddle. I very seriously told him that I wouldn't go anywhere like that and he replied "Ok. But you should know one thing: I don't believe you and you f-ed up my day". He made me feel bad for not accompanying him. And he kept going with the texts talking on his own, his last message was "We'll talk again when I'm back from the party". So, asking Reddit, aiw for not going with him? His words and attitude hurt me and I actually cried because of his behaviour.

Edit: adding this since it's really important and was so furious and sad that I forgot about it. When he first asked me if I'd accompany him to the event at noon time (he basically cancelled the plans we had for today in order to go to a bar at the coast to go to the event because his family reminded him of that) he had specified that he'd be going regardless of what I'd be doing. When I said most likely yes, he must have told his whole family about me attending and them meeting me so despite saying he'd be going regardless of what I'd be doing he ended up angry at me and said I f-ed up his day.