My wife and I first "met" in Middle School, but never really talked. She was very shy, one of those girls that you might know not is in your class if you didn't look around.
In high school, I'd always thought she was pretty and nice, but never acted on it. However, before our Senior year of High School, I was at a church convention, starting at the ceiling before the service started, and it was weird, it's like something hit my head and said "ask [wife's name]". "Oh, OK" I thought.
So I went back to school, and tried to find a good opportunity to ask her. I finally got the courage up, but when I went to catch her before class, she wasn't there. I was finally ready to talk to her and she was at a doctor's appointment or something.
Turns out she was just running late to our class. I walked out of the classroom to get a drink of water (and look for her, hoping to catch her). She was coming up the stairs then, so I asked "Hey, would you like to go to Homecoming with me?" She nonchalantly said "sure" and walked into class.
Turns out she was freaking out inside, wasn't sure if I was joking, and spent the rest of the day fretting about it. So, we went from admiring each other but never talking, to going to a Homecoming dance, to being married just 3.5 years later.