I was at a bar talking to a friend. She was there talking to a thirsty beta who paid for all her drinks. When she noticed me, she left the beta, walked up to me, and introduced herself. We talked for a bit but nothing happened beyond that, as I already had a girlfriend at the time. We barely spoke after that, maybe the occasional hello when I'd see her at uni, until months later when both of us happened to be single at the same time. I offered a night out to distract her from her recently ended relationship. It was an incredibly fun night and we mutually felt amazing chemistry. It's almost 5 years since that time she came up to me at the bar and we're still happily together. Going to propose to her soon.