Ah. Well. That's one reason I'm here, actually.

[He sighs down at his cocoa, half-gone and cooling.]

The Steve in my universe went off to live in the past with his girlfriend from the war. Time travel was a thing for a while, so it was possible for him. He aged and had his life with her and, well, once he got around to my time again he was old. We buried him a couple months before I left my world to come back here.