I'm pissed at my sick friend for not helping out at our event
Why are you upset at your friend?
He's such a jerk for not helping us and being sick isn't a good excuse.
Well, your friend could make you all sick too if they tried to help. That wouldn't be good at all.
I know but I had to do it by myself for the first part. My other friends did nothing to help and then dumped it all on me at the end.
It can be tough to be in a group project, but I think your sick friend deserves a bit of a break. I'm sure they would have liked to contribute. Maybe send them a get well card and try to cheer them up!