While she might be making a joke about the pizza, she does in fact love melted chocolate.

"Weird? Or interesting"

And then Tony just can't ignore that.

"You can have chocolate on pizza, it's a dessert pizza you don't use cheese though, I've had it with marshmallows and caramel. It's really good."

"Oh! I want that!"

He turns his attention to Floramon before glancing at Fluttershy.

"Shy, huh?" He lowers himself to get more on her level. "Hi there. Name's Tony, what's yours, dearheart?"