The one?
Nah dude. It wasn't a moment. Don't base life decisions on a moment, they're over before they begin.
It's not like that. It's like how you make a "best friend". You don't spot someone and be like "Oh yeah, that's the person who i'm going to share a ton of interest with and like to hang out with!" You hang out with a bunch of people and notice you like some of them better than others.
How did I know my wife was "the one?" Well, we had been together for a few years and still wanted to be together. She said "We should get married", and it obviously meant something to her, so we did. Still going good, so I guess it was a good decision. Plus I guess we save some money on taxes. She continues to have to clean up after the name change though, seems like a pain in the ass.
Too many people see dating and marriage as an inevitable stage of life. Like you're just supposed to date a bunch of people, then by a certain age, you just gotta pick one and pair off. That's gonna lead to a shitty marriage though. It's similar to the phenomenon in high school where dating is as much a social status thing as it is about romance, the "popular" people tended to date one another, and hearing them talk, they fucking hated each other. I imagine if you carry that mentality into adulthood you're gonna end up in some shitty relationships.
Both myself and my wife have said to one another that we never thought we would get married. Just... we didn't see it as a stage of life one necessarily must go through. So perhaps the lack of pressure helps, if you think getting married is going to make a big change in your relationship you're likely to be disappointed.