Look, we’ve seen Endgame. We all know that Steve Rogers used science-magic to travel back in time to be with the love of his life, Peggy Carter (who we saw him lurve in Captain America: The First Avenger and die in Captain America: Civil War), and we all agreed to just enjoy Old Steve and not think about his creepy time travel love life too hard.
So now it’s time to think about it. And think about it too hard.
See, there was another Captain America film in the middle of the aforementioned – Captain America: The Winter Soldier – and in that one Steve starts a relationship with a SHIELD field agent named Sharon Carter.
Anyway. Stevo and Shazza have a thing and as best as we know from Marvel Cinematic Universe material it only ended when she got Snapped by Thanos (hers is one of a many screens of the Snapped we see early in the film).
The issue with this is that, as we discovered at Peggy’s funeral, she’s Sharon’s great-aunt. Meaning that presumably Peggy had a brother who had a son, for that surname to be passed down?
But if she was hoping she and her beau were going to pick up where, as far as she was concerned, things had left off mere seconds earlier, then she was in for a surprise because whoops: he just went back in time to pash her great aunt.
Ewww.
But let’s just think about this for a second, because if there’s one timeline then Steve was the great-uncle to his former girlfriend, and that’s just a bit weird. Especially assuming he’s ever discussed his romantic past (future?) to Peggy.
And if there are different timelines then it’s the same situation unless Steve getting involved in the Carter family might have changed things to the point where Sharon didn’t exist at all.
For all we know Peggy’s brother – Sharon’s dad – met his wife through his brother-in-law. You had to rely on that sort of romantic wingmannery pre-Tinder, you know.
So: in one possibility Cap got it on with his grand-niece (by marriage); in the other, he might have destroyed her altogether. Neither… look, neither are great.
In any case, spare a moment for Sharon. Her boo left her for her great aunt. She’s going to struggle to find the right support group for that.