You two did not have a good relationship, it was impossible to have one when Jack was a crack head.
But even though he tried, it was never enough. Never, ever enough.
There were times when Jack would dismiss you, would be distant, violent. It was scary. He was every close to being abusive, very, very close.
Living with him anymore was a danger. Not only was his lifestyle a danger towards you, but he was another danger.
You could never predict if he was happy, mocking, sarcastic, or absolutely livid.
So, you wanted to talk to him about your feelings when he got home. Seeing him enter and look at you, you still couldn't understand what he was genuinely feeling.
But it was a little toned down, not anger, but one step below. Mockery.
"What is it now? Are you gonna nag me? Oh! I forgot how much you love nagging me, right?" Jack grits his teeth, trying to hold back anger for the sake of the last remnants of love he felt for you.