Have you ever liked someone that you knew you would never be with?

i like to call them taboo girls because you like them alot but you know you will never get them. Their are different reasons maybe they dont like you in that way,or maybe they have a boyfriend, or maybe they live in another town. i use to like this girl that was so out of my league that i have a better chance of winning the lottery 7 times then getting her to fall in love with me.