Lyric discussion by guildingthelily 

Cover art for Blacked Out lyrics by As Tall as Lions

its- " how could i say goodbye, i won't let you see that side"

the first verse i think is about refusing to leave somebody because you love them so much, despite the fact that you know you should. and the not letting somebody see that side means that for whatever reason wether it be pride or just dont want to let them down you you wont leave.