My questions all lay with Bruce in AoU. So he was on the run after TIH. Then after Avengers what exactly his status is is never made clear. I mean, I assume he's been cleared of any government people chasing him, right? And he has his own lab at Stark Tower. So is he living back in society again? Is he living/working full time at Stark Tower? If so, why isn't he back with Betty? Seriously, why is that never referenced as he starts to romance Natasha?
Black Widow and her backstory
They never explain, i assume since Hulk is only in avneger movies(till november) they dont have time to bring in Hulk related characters. Its much easier to give him somethinr with a character whos already theyre like Widow.
She was somekinda sterile russian assasins who Fury saves and gets to join shield. I personaly dont care to know more but supposedly a blackwidow movie is in the works so maybe you will get your wish.
The Avengers had some clout after saving the world, I imagine, and were able to push back on demands to hand over Banner, I imagine. But that ended after his Age of Ultron rampage.
I think the problem with movies (small problem, but problem al the same) is that details like how Banner, and later Scarlet Witch, were able to stay free after what they've done, fall through the cracks.
In Civil War Tony' says. "A few years ago I almost lost her(Pepper), so I trashed all my suits. Then we had to mop up HYDRA, and then Ultron. My fault. And then, and then, and then, I never stopped. Because the truth is I don't want to stop"
There you have it. He doesn't want to give up being Ironman.