Re: STEVE ROGERS
Steve has been trying to work out a lot of the same thoughts and feelings ever since Natasha filled in some of the blanks for him. He knows he can't do anything about the other Steves (because they weren't him, right?) who were in Derleth or the problems they might have created. But that concerned him less than learning what he decided to do after they finally destroyed Thanos and his army. Was he really going to do that? Travel back in time and stay there? That didn't sound like him. And yet he couldn't say for certain that he wouldn't make a decision like that in the future. It was a conundrum.
As for Sam and Bucky's relationship, well, Steve wasn't lying when he said he was happy for them both. He truly believed they both deserved more happiness than any other people he knew. But he wasn't exactly ready to talk about that and so if he crossed Sam's path during the night he wouldn't bring it up. But if someone else did then Steve would be, as always, polite and conscientious. Because to him they were all still friends at heart.