Yes, most definitely, mga 3 times in a span of 15 years.
Parating acquaintances then friendship then feelings for me. First one was in college, we got close, he liked someone else, I told him, I support him, tapos heartbreak for him, after a few months, he asked me if he had a chance with me, I told him "****, no way!", then continued being friends kahit na I was hurting because he had a string of gfs, then when I graduated ahead of me, when he tried contacting me, I didn't want to. Now he's married, sabi ng bff ko.
The second one was in the first company I worked for, we were in the same office branch. I didn't like him at first, and I was actually supportive when he courted one of my friends, then we became close kasi basted sya sa friend ko, so I started liking him na, then slowly falling for him na, until he got into a relationship. After I resigned, we still get to talk and hang out with each other. Just last year, I was informed he broke up with the girl. Pero ngayon, parang wala naman, friends, if he'll ask, I still need to get to know him again.
The last one was around 2 years ago. He's 11 years my senior, and was a senior consultant in our office. It just happened, we weren't close, pero we got close for some reason. When I asked him if he had a gf, he got mad and didn't talk to me, then I sad sorry. Then that same year, in November, he got married to his gf. Coincidentally, he now lives in the same village, I live in. Pero fortunately, hindi pa kami nagkikita. Let's see.