I'm Full

I had this conversation with an acquaintance at a party on New Year's. So this has been stuck in my head for a while.

I was at my friend's house for a New Year's party. I poured myself a beverage (I'm sure it had alcohol, but I can't remember what it was!) and asked the lady standing next to me if she wanted something.

Me: Would you like a drink?

Her: No, I'm full.

Me: (blank stare)

Her: Well I was tired earlier and I knew that I was going to stay up late tonight at the party so I had a diet coke.

Me: (Still staring. Please tell me there is more to this story than a diet coke).

Her: Well I drank the whole can of diet coke and now I'm full. (She rubs her stomach and makes a pouty face.)

Me: I know what you mean. I had a diet coke yesterday and I still feel like I'm going to explode. What do they put in those things anyway? I don't think I can eat another thing until next Tuesday! (Ok, so maybe I didn't say that. Maybe I just gave another blank stare in response.)