Have you ever feel so desperately in love but the person you're falling with doesn't love you back? aaaw, it must be so hard *and hurt so bad of course. Even though you swear to do anything for him/her, still you mean nothing to him/her. If that's the case, then Grenade should be on top on your tracklist.
Gave you all I had and you tossed it in the trashYou tossed it in the trash, yes, you didTo give me all your love is all I ever asked'Cause what you don't understand isI'd catch a grenade for yaThrow my hand on a blade for yaI'd jump in front of a train for yaYou know I'd do anything for yaI would go through all this painTake a bullet straight through my brainYes, I would die for ya, babyBut you won't do the sameGrenade-Bruno Mars