It took people a week to figure out that they'd gotten married. And yeah, okay, that might have been due to the fact that they hadn't even gotten rings until they'd been married for five days, but Steve was surprised that no one had noticed that he and Bucky were so happy that they were basically floating around.
Unsurprisingly, Natasha was the first person to notice. She'd just shown up at his and Bucky's apartment, but when he went to invite her in, she'd declined, instead opting to just grab his left hand and examine the replica of his mother's wedding ring sitting on his finger.
"Looks old," she'd said, and Steve had replied, "It's a replica of my mother's ring." Natasha had nodded, then said, "Congratulations." She didn't sound all that enthusiastic- well, she didn't really sound much of anything- but Steve thought that she was actually really happy for him and Bucky.
"You gonna tell anyone?" he asked, and that was when a grin stretched across her face.
"No, but I definitely want to be there when Tony finds out," she replied. "If only so I can film his reaction. It'll probably be hilarious."
(It was)