I did it; I ate the cupcake. I hesitated and thought real hard about it, but in the end I ate it.
I went to a meeting and they had cupcakes as a celebration for some work that went really well. I said no and I even sat in the back of the room. I stared at the box, thought about it, and folded like a house of cards. It was f-ing good! I am not going to beat myself up about it, and I will move forward.