Is it normal that i avoided my crush all through college?

I had a secret crush all through college, many years ago. I kept bumping into her, and was in a few of her classes, but the thought of seeing her severely stressed me out, night and day. I was never able to speak to her, and found myself either sweating or shaking whenever there was a good opportunity to speak to her (so, I avoided doing so). Once she smiled at me, and I think i literally melted. Still, ironically, I basically lived to be near her during those days, and was always wondering where she was, and what she was doing (NO.. I never stalked her!).

Now, all these years later, I'm happily married, and yet I still occasionally think about her and sometimes the regret of that "lost opportunity" is overwhelming.