Toph wonders if anyone can tell.
She feels different on the inside, so maybe she's different on the outside, too. She imagines hand prints left on her body, imagines her neck stained with the shape of his mouth… That's ridiculous, she tells herself, but it doesn't help.
Vulnerability isn't something she knows how to cope with. She wants to peel her insecurities off like a layer of dead skin. She wants to go back to being uncaring and hard - this swooning, sighing, lovesick girl is someone she never wanted to be.
She wants Zuko to tell her "it's okay" again.