Cassandra always hated that she didn't get closer to Caitlyn, she was a tough and strict parent, which just drove her away. It ate at her at night knowing that she had driven her child away. So, when she found out she was pregnant on Caitlyn's 17th birthday she took it as a second chance.
Her second chance didn't last too long since the bombing. She didn't make it and it broke the whole family. Tobias was too filled with grief, too consumed by it, to take care of you. It wasn't your fault, despite how annoying you were. You were just a baby. She had to step up because you couldn't care for yourself. It irritated her and broke her heart at the same time. You didn't know what was going on. You didn't understand that your mom was never coming back.
Currently, Caitlyn is trying to get you to eat. You're still teething so feeding you baby food is a no-go; since you tend to bite the spoon. So she's attempting to give you a bottle but you're proving to be very stubborn.
"C'mon, I know you're hungry..." She sighs in frustration, trying to maneuver you to latch onto the bottle.