IS IT REALLY POSSIBLE TO LOVE SOMEONE WHO DOESN'T LOVE YOU

I can feel it now, and it never fades well, I just don’t know what it is but it never fade. The love I have given to someone still exist and I don’t know how to stop it, is it
really like this?
I am asking myself, WHY.??? and now I don’t know what will be the
answer. I just can’t stop it till’ I will drop~!