Archie and Veronica meet each other on the internet, start talking, and realize they live in a nearby state or city. Then, one day, at some sort of vacation, they meet each other. Because Veronica described something that happened between them to a friend, with Archie within earshot. Then, Archie realizes that happen the day before and ran up to Veronica, shouting their catchphrase they came up with. And now their married.
AN; give credit if used please.