At first, I thought it was an oversight. But, then I took them to him and said, "did you forget or were you being mean?" He
said, "I was being mean" That wasn't very nice!So, then I went past him later and he says, "did you say hot fudge sundae?"
I thought, "what is his problem? He should know what it feels like since he has lost so much." Then, another co worker pointed out to me that he may be jealous and doesn't want the attention taken off of him for his weight loss. How sad.
If that is the case, I honestly feel sad for him.

I happen to know that he has a weakness for lemon bars. And if he persists, there will be a whole batch on his desk. 
Remind me not to get on your bad side!