Bruce's expression is sharp and forbidding, almost uncharacteristically so, but it isn't, not really. Bruce isn't afraid to delineate boundaries, and this is a boundary he intends to keep intact.

"He's not me," he says fiercely. "He's his own... his own thing. We share a body, but he isn't a part of me. Okay? Don't conflate the two of us." The Hulk is angry and vicious and unpredictable, uncontrollable; he's everything Bruce has never let himself become.

"And I don't care if he is lonely." There, he said it. He's a little afraid of Tony's reaction, honestly. "I don't care, just like he's never cared that he's ruined my life, my career, everything."