Common sense returns quickly to her after that. Come on, Potts. Don't go kissing your husband's lookalikes... or alternate universe versions of him, rather. Something like that.

"Yeah, I know," she agrees, lips tugging into a hint of a wry smile now. "Don't sue me over a goodbye kiss."

She just decided that in the last few seconds, but it works. More seriously, she adds, "Be careful. And don't tell me you're always careful, you probably aren't even if you think you are. Call it a hunch."