Lyric discussion by Jonorbz409 

Cover art for Last to Know lyrics by Bullet for My Valentine

It's about someone talking shit about you behind your back, put never having the guts say it to your face cos you'd kick the hell out of them. It can be used as a metaphor for all the crap they get thrown at them about whatever from the media, just because they hate how successful Bullet have become even though they supported them in the first place. Hence the hypocrisy from jealousy part.