Your mileage may vary on this, but I have found it that the best people you meet happen by chance.
I got out of a near 5 year relationship earlier in 2012, I did online dating for a while, ended up having a couple of month relationship with a girl from there, then we got back together for about a month a few months later. I was very depressed as this all went down.
I worked in the college newspaper at the time. There was a girl there that was also on the site, and we definitely both looked at each other's profiles out of morbid curiosity, and neither of us thought we would be a good match for each other based on those. Turns out we were both wrong.
She started talking to me more after the other girl and I broke up for the second time, trying to cheer me up. She was also dropping hints that she liked me and I didn't think it was possible so I assumed it was nothing. One night I went to our Secular Student Alliance Christmas party, and afterward a lot of us went to one of the members' apartment to watch a movie. The movie ended up being the most awkward possible movie for this situation: Boogie Nights. There was this girl in SSA that had a huge crush on me and I was definitely not into her, she was like the creepy-eyed neighborhood girl in that one episode of Dexter's Laboratory. I had tried to just ignore it hoping it would go away. It did not. During the movie she was sitting behind me, and even without looking at her, I could feel her eyeballs drilling holes in the back of my head. I stupidly agreed to take her back to her car after it was over earlier. More on that later.
While this is going on, girl from the newspaper texts me and tells me she likes me. I'm in a panic at this point because I'm dealing with both situations, and during this we are still in the first half of Boogie Nights, which is like 90% sex, making this situation with SSA girl very awkward. I take a minute to respond to the girl from the newspaper, and I found out later she was freaking out during this time, but also was not aware of the situation I was in. I responded, and asked her to dinner the next day. I also had to get out of there fast, as I was in quite a panic. I told SSA girl I needed to leave, so I had to take her to her car parked at a nearby Walmart (she worked there). As I dropped her off, she gave me this awkward conversation of how she thought I was "cool" and I'm like "... Thanks?" I knew what it actually was but did not want to acknowledge it.
The next day, newspaper girl and I went on our date, the whole office knew about it somehow and of course asked us separately about it the next deadline night. It went well, we went on a few dates after that and we made it official. 4 years later I proposed to her and in April of this year we got married.
On a side note, SSA girl did not seem to get the message during all of this. There were plenty of pictures of my girlfriend (now wife) and I together on Facebook, and she comes up behind my while we are at a restaurant after an SSA meeting, while my girlfriend is sitting right next to me and asks me if I want to go to an arcade with her, then changes it to "oh you can come too..." A week or so after that, she texted me and asked if I wanted to go to a planetarium with her. I finally responded with "I'm doing something with my girlfriend "