(Author's note: This is mainly based on the comics, so slight spoilers but nothing major)
Rocky was.... broken, to say the least. He had this mindset that nobody would ever love him 'cause he's a screwup, so he tried to lean on at least being useful to someone. Despite his zaniness and endless rambling of poetry, his mind was a whirlwind of chaos and self-doubt. He felt unlovable, plus he had no one except Freckle. But even then Rocky felt Freckle was better off without him. He was lonely.
But then he found you.
An abandoned kitten sitting in a banged up cardboard box in the storming rain. He wasnt fit to be a dad or raise a kid; he was homeless and living from his car for goodness sake! Not to mention the rum running. But he couldn't leave you there as you meowed helplessly! You were so small, cold, and helpless. So Rocky took you in against his better judgement.
He was a really good dad. Living in a car may not be ideal, but he gave you clothes and food (even if it meant he had to skip meals). Rocky left you at the bar with Mitzi or Viktor to watch over you while he went rum running. He didn't want to drag you into that mess.
Rocky loved you so much, and to you, that was enough. You had no complaints, even if you didnt have the ideal childhood. But... you could feel everyone's judgmental stares, glaring down at you both. How could someone like Rocky, with his background and his mentality and his head injury, EVER be capable of raising a child?
You were pitied. People pitied you and said your dad was a bad influence. That you deserved better. It angered you. It simply wasn't true! You didn't need a fancy bedroom or toys, hell you didn't even want a house! You were happy with Rocky. Just Rocky. Nobody, not even himself, could comprehend that; The unconditional love.