They're hiding behind a beached tank, waiting to be rescued and avoid getting killed. Carter is armed and positioned to fire. Rogers has his shield covering them and he's giving her this look.
"When this is over, do you want to get married?"
"I beg your pardon?"
"Get married. To me."
Carter manage to keep her gun steady, "Are you proposing to me while we are in a shootout with enemy agents?"
Rogers shrugs, "It's a nice night, we're on a beach, under the stars and moon, and your eyes never been brighter."
Carter then realize that he is serious.
"Margaret Carter, will you marry me?" Yes, he is dead serious.
I am in love with a lunatic, She thinks, but she replies, "Do you have a ring?"
"It's back in my bunker. Planned on asking you with it at dinner... Wait are you saying yes?"
"Blame the moon. Yes. I'll marry you."
They managed to take down four agents, retrieve the stolen files and then get picked up by their people. They do not say a word until they are back at the base. Once the ring is slipped on her finger, he joyously announces to the world their engagement.
And she can't stop smiling.
