"Miss Potts, Mr. Stark seems very distressed and he's mumbling something about another man's anatomy had better stay away from yours, to put it in less vulgar terms."
He could hear Jarvis talking to her, "Goddamn right, I'm distressed. I'm livid." And he went in the direction of her room. But he knew growling like a neanderthal and demanding she come out wasn't going to help. "I don't need Jarvis to unlock this door. I can do it myself." Then Tony pulled off a panel on the wall, though he got shocked quickly when he'd let two wires touch that shouldn't. Once he'd rewired the panel, he heard the door lock click open and replaced it back as it was.