Betty Ross right? Bruce might have broken up with Betty as he makes it clear to Black Widow in Avengers i guess that he cannot have sex as he turns into hulk when he is excited. And due to this problem he might have left Betty and later goes to Calcutta, India to provide medical help to poors.

Betty Ross is the red-she hulk… Pretty cool fact.

But not in MCU till now only in comicbook ????

As the whole hulk cast are
re-casted they thought they should go with the storyline where he broke up with Betty ross. And will use her in future as when banner needs her.