Can I say that I really liked the fact, while I will admit with my fanboy ego that AoU had some big writing problems, that it's Natasha who's flirting and advancing on Bruce? I don't see a lot of that on TV or in movies, and when that does happen it's usually for sex, but that's not what Nat nor Bruce is after. They have some sort of bond, and Nat takes it upon herself to try and get the shy and nervous Bruce Banner out of his little shell. I like that a lot. :3
Oh, definitely! I was worried that Nat would be reduced to a love interest in AoU. Conversely, Bruce became her love interest to some extent. It’s great character development for Natasha because she moves from perpetually providing emotional labor for the male heroes (Cap, Tony etc) to pursuing a mutually beneficial relationship that she wants for herself. I think that the idea of dominant femininity is really fun and should be normalized more in movies. Bruce and Natasha are a great team!! Disclaimer: the writing in AoU is pretty cringey at times. But that doesn’t change the fact that the ship provides a lot of interesting trope reversals!