I’m sorry to hear that,you must be in an awkward position.
I suggest you bring something over,something you could eat for the whole gathering,it’s better than bringing your own food.
if you don’t mind me asking,why is it a big deal,I’m still a newbie at diabetes(2yrs),and I don’t see why you can’t have pancakes or cookies,unless you’re on a fixed dose,I think it’s perfectly fine to have fun every once in a while.