40 years this September.
First day of college, I was smitten. Became friends, but otherwise unrequited.
A couple years after graduation, she contacts me. We get together a few times, as friends, again. I still had a major crush on her, but didn't pursue that aspect for fear of losing the friendship. Always felt that was a stress on our friendship during college.
Meanwhile, I was dating other ladies, and got engaged. Then was totally shocked when my "crush" asked, "Did you ever think of asking ME?" Ummm ...
Spent the months before my wedding in anguish ... break my fiancee's heart, and take another chance with my "crush," or stay the path. Decided to go ahead with the wedding.
Fast forward 15 years, a divorce and two kids later, I am about to propose to another lady. My crush was married with a child by then (we had kept in touch, off and on). I considered contacting her, just to be sure she was still unavailable, but decided to just get over her, and move on.
A week after getting engaged to this new lady, I scrolled through my email, and saw one I missed from 8 days before. From my "crush": "I'm divorced, and wondering how you are doing."
Fast forward another 15 years: After going ahead with my planned second marriage, I am very happy and love my wife, but still wake in the middle of the night, having dreams of my crush ... where we are both still young, and struggling with big life decisions.