Well, this is heartbreaking. Now that he knows for sure that he's welcome, he steps up the rest of the way and presses himself against Tony's back. It doesn't matter how cold he is; Bruce can adjust. He wraps his other arm around Tony's waist and makes sure he's flush against him, and then he sets his mouth near Tony's ear. The position is familiar, and maybe the following conversation will be as helpful as the one he and Tony had like this before, only reversed.

"My paranoia about secrecy probably isn't what someone would call normal, but fuck normal. That's normal for me; being an open book is normal for you, no matter what unfortunate and damaging life experiences brought us here."

He pauses, resting his mouth against Tony's shoulder in a kind of kiss, when really he needs to draw some strength from him for a second.

"Nothing you've given me is shit. That you chose to tell me the things you do hold close is a gift."