Fan Theory: Are Black Widow and Captain America Romantically Involved in ' Avengers: Infinity War'? Christine Cenon by Christine Cenon.
Natasha understands Steve in ways that perhaps only Bucky does, although James Barnes may not know him as well as he once did. Steve Rogers would not respond to Natasha on a sexual level. What's the relationship between Black Widow and Captain America in the Marvel Cinematic.
[This story contains major spoilers for Marvel Studios' Avengers: Endgame. Proceed with caution.] Iron Man (Robert Downey Jr.), the Incredible Hulk (Mark Ruffalo), Black Widow (Scarlett Johansson), Thor Odinson (Chris Hemsworth), Hawkeye (Jeremy Renner), Captain America (Chris Evans).