It is found in Abbie's bunker, in Abbie's room.
Abbie: If we hadn't bothered with this stupid, stupid system... they'd all still be here. Well, guess what? If you all die, that kinda defeats the purpose!
I'd rather eat Cram every day and never see the sun again then be stuck here... alone.
I miss my mom... and my dad. You guys are supposed to be here. You took me away from my friends and my life all on your stupid promise that things were going to be fine! That this was best! I just want things back the way they were.