First of all, congrats on doing so well so far. At 6' 1.5" tall and only 175 lbs, you have done something right. Now as for those desserts, maybe next time you could send them home with your guests; that's what I do. As they are walking out the door, say -- "Oh, here's a little snack for later on."
But since you didn't do that, dump the rest; right now!
In the garbage bin, pal. The celebration and the cheating is over ...
Oops, forgot to answer your first question: Ummmmm ... can't recall, but since I plan my snacks (no matter what kind they are), I don't really cheat per se ...
OK, I just remembered; had to think about it -- it was last September. My sista & BIL came to stay one week; they bought a bunch of junk: I ate some, but then I planned to as well. As soon as they left, I was back on plan ...
I had some treats on Christmas Day 2011; again, I expected that -- back on plan the next day! Hey, I'm getting better at this ...