I Want to Stop Living With Regret

I don't know what I'm feeling. I recently found out my old high school crush got engaged. He is the sweetest person I have ever met. I certainly wish him the best and all the happiness in the world, but I feel disappointed. I never intended to pursue a relationship with him because I always believed he was meant for someone else. At the same time, however, I have a sense of regret of never saying anything---except it's not really that. I feel regret over unfulfilled life expectations. His engagement is a symbolic representation of all the experiences and milestones society seems to pressure people into believing that they must fulfill in order to live a fulfilling and successful life. On one hand I agonize over where I am in life right now, but on the other I can only live and grow within the limitations of my own unique circumstances. I might not have the kind of life coveted and idolized by most of the population, but I can only hope I will find purpose, meaning, and contentment as time flows forward.