Steve wanted to be a part of Tony's future. A big part, a far bigger part than he remembered being. Now that he'd had this? The idea of going back, of watching Tony be happy with someone else might actually destroy him. Maybe things could be different, maybe the future could be different for them. Or maybe this was what they had now and selfishly Steve wasn't mad about that. There was a lot of things missing, but they had each other and he was hooked on that.
Tony's nose pressed to his jaw and Steve wanted to curl around him, envelop him completely until neither of them had to be alone again. It wasn't the first time Steve worried that the intensity of how he felt bordered a little on too much. But that was the thing about Steve, he loved hard and he'd burn the darn world down if he needed to.
"I- I don't know," and wasn't that the truth? Even with all this new knowledge, even knowing what had happened and going back in time and where they all ended up? He didn't feel like he actually knew anything at all. "It wasn't so bad, Nat and I, we made do and I had people, I didn't just sit at home and pine for you." Much.