Oh help me wise MNers with this very odd dilemma. I've name changed in case it's outing but a regular.
I am going to a costume party. It's quite a big deal and lots and lots of people I know will be there, including people I don't know well and don't feel that comfortable in front of. Some time ago I agreed to be in a 'group' costume ie four of us all dressed the same, but in my absence the other three decided on something that I am not totally comfortable wearing as it makes me feel fat and dowdy. One of the girls has also spent a lot of money on the costumes although didn't ask about it first. By the time I found out what it would look like it had been bought.
I've realised I can modify it to feel better/less ridiculous wearing it but would a bit different from the other three and possibly piss them off.
AIBU to not quite go along with the costume because I don't want to look dowdy?
WWYD?