You shouldn't break up with someone you've gotten pregnant.
Chris got his girlfriend pregnant and is afraid for the future, as he doesn't make much money.
Chris wants to avoid going hungry.
Chris looks for a better-paying job to support his new family.
Chris leaves his girlfriend and focuses on protecting himself.
Chris finds a job and is able to support his girlfriend and their new child.
His ex-girlfriend raises the child alone and the child feels abandoned by Chris.