[The truth of the matter is that Bruce does want to come back - he really does, because every part of him misses his life in the Tower. With Tony. It was the best thing that ever happened to him and he had loved every moment of his time there. Loved being around Tony and cherishing every moment he spent with him. He wants that back.
text;
But he doesn't deserve it. Not after everything.]
I can't. I... it won't help.
[His presence will just make things worse.]