Steve & OTA
Pepper was important to Steve. One of the most important people in his life and even after he'd fallen out with Tony, he'd cared for her. Hadn't been able to keep in touch back at home but definitely had here. And he was thrilled for her, couldn't even put into words how happy he was to be able to stand up and give her away.
He didn't even mind having to put on a suit and tie for the event, didn't mind doing that for just about any event, really.
Seated at one of the tables, he sipped quietly on a drink as he watched the party around him, a content smile on his face. This was exactly the kind of thing he wanted for all the people important in his life.