Tony and Stephen are the couple that accidentally get married in Vegas at like 3 AM and only realize it the next morning when they see the wedding papers and that they’re wearing wedding rings.
Thor and Bruce are the couple that have each planned out their proposal a hundred thousand times and they end up popping the question to each other at the same time under the stars and have a nice quiet wedding somewhere pretty and peaceful.
The one thing both couples have in common is that, no matter how it happened, they’re thrilled, completely over the moon, to be married to the person they love.
Tony: As a child, when faced with a dilemma, my Aunt Peggy encouraged me to ask what would Jesus do? The answer to that was always love thy neighbour. But my neighbour had a toupee, so that wasn’t going to happen. But that’s why I changed it to, what would Spock do?
Bruce: Did you find that helpful?
Tony: Yes. Oh, for example, three years ago when I discovered Thor was eating all my Pop-Tarts, instead of getting angry or vindictive, you know, I got a floor safe.