Which cap natasha chemistry in the movies is your favourite?
I love them all, but particularly my favourite is winter soldier, because it's very platonic, romantic too, and Evans and Scarlet have terrific chemistry with each other in all of the movies. It's been one of my favourite moments in the movies. Even the fight sequences.
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I do like the endgame chemistry though.
I still think he (and the rest of the og 6 aside from Clint) should have had more of a reaction to her death. I can’t help but feel like she was forgotten about, especially in comparison to Tony’s—admittedly deserved—giant funeral. At least we got to see that grief from Yelena in Black Widow and Hawkeye.

So there very much could be something there if pursued.
Also, to the point of their relationship developing, in Civil War, when she shows up at Peggy’s funeral just cause she “didn’t want you to be alone,” that is one of my favorite moments between them and just overall in the mcu
They were both great in Winter Soldier, but the flirty pseudo romance between them never felt right.