I sorta hope Jeph goes slow with this. Bubbles is still recovering from her (near) slavery with Corpse Witch after all.
Correct me if I missed something, but IIRC bubbles' life went like this:
* constructed and trained as a soldier.
* sent to war with her squad, lost her squad.
* met corpse witch in search for someone to seal her memories, ended up in a bad situation.
* met faye.
She's not just recovering from the corpse witch episode. She's still incredibly young, and she has never even experienced friendship before. There were no parents or childhood friends. Sure, the squad mates cared about each other, and she'd deeply miss them if only she could remember, but camaraderie is born out of necessity. As far as we know, Faye is the first person in her life who had the choice between caring or not caring, and she cared.
Of course that makes her feel.. something, and she needs to figure out what that is. Is it friendship, is it love, is it lust, is it
food poisoning a software glitch? I'm sure she'll find out eventually...