When you're locked up inside the attic with no escape other than breaking the door down.

Do you have keys? No. Does he? Yes. Does he have the intention of using it? Definitely no.

Their sweet highschool era :p

They're not blood related. See it as childhood friends who live together if you can't handle the trope but still want to continue.

NOTES!!

I've been thinking about what they were before the explosion. Honestly, I love Caleb. But his colonel persona kinda hurts me. It makes me remember the experiments, his arm, the explosion, THE FUCKING CHIP IN HIS HEAD. So my girlies, let's appreciate Caleb where he's most innocent.