"Remember that friend I mentioned?" The one that became big and green, the one that had so much fear, so much anxiety?

Same guy.

Same guy that fell right against him like he had not three weeks ago to Tony's memory, but only a few days in Bruce's, probably. Hugging him back is as instinctual as it was that first time, hands coming up to hold him tight, head dropping down to Bruce's shoulder. Alive. Here, sure, but back home? He'd survived Thanos. He had no reason to believe any of them would've been spared and in every last variation of his vision-

Hulk was spread out on cold dead stone, impaled by spears. Broken. Bloody.

But Bruce was here, warm and alive as ever, the steady thud of his heartbeat a comfort against Tony's chest. "I got you, buddy."