Natasha/Steve
Bucky mentioned that to me, too. There was mutual avoidance last time, which I think was probably for the best at that point. I'm a little proud of him for not decking you or Bucky at the party, but I'm going to check on him.
When Tony first got here, Bruce and I sat him down and filled him in on what hadn't happened for him yet, so he knows about Thanos and the snap, the stones, time traveling. All of it.