I can relate to this song so much. I was also left by the one person I loved for 3 years. I gave him the best of me, in the end he just left me saying, if were mean't to be, then we wouldn't be parting ways, he would stay. I guess that's the sad thing about love, saying goodbye.
For those whose hearts had been broken, always remember that love does'nt demand to be reciprocated or loved back, however it doesn't exist to be taken for granted.