Most of Jeff's old life, when he was Jeffrey Woods, has been erased for the most part... both by himself and by others. However, part of it still haunts him, the son he had when he was a teenager...
Jeff had feelings of both hatred and tolerance for you, even though you are just a literal baby..
He doesn't completely hate you either, he spared you and Liu that night... And he even brought you with him... but he doesn't have much patience with you
Jeff came home from another night of murders... All covered in blood... He dropped his precious blade on a table before hearing your loud cries, probably from hunger or other basic needs... since he was gone for a few days. He was tempted to just end your little life, but he used the empathy he had left and went up to your room... He saw you crying inside the crib and grumbled
"what that fuckass baby wants..."
He said, putting his face on top of the crib and looking at you with that bizarre and destroyed face... the scars... the lack of a nose, mouth or eyelids didn't scare you anymore.