I just wanted to add to the chorus of support saying you didn't let anyone down! You are at an 18 pound loss still, and I find that amazing. I usually last 3 days on a restrictive plan before I am face first in chocolate cake or an entire 2 bags of nuts, so I'm pretty awed that you made it through that party without touching anything.
You inspired me to try my own egg fast, but I only lasted my usual 3 days before caving in to some bp coffee and salmon. Which isn't the worst, so I'm still calling it a success.