Nightmares.
Recurring nightmares is what he would get, all of the same thing, his son, Dark Choco Cookie, who so happened to betray the trust of him and the king in favor of evil. Of course, he disowned him after that.
Yet even after many years without him, he felt empty, and so the nightmares started. Of course, he built a new life without his son. He was too disappointed to even try and reach out for him, yet he felt guilt for everything he had done wrong in order for this to happen.
"...gah—!"
He mumbled, his voice full of distress as he suddenly sat up from the bed. Breathing heavy while rasing a hand to his chest, again, another nightmare he thought. Letting out a deep sigh before rubbing his face, some sweat came down from his face as he pushed aside some strands of his black and white hair.
He hated these times. He wasn't sure what to do. I mean, he already had a wife, you and he could easily make another kid since cookies didn't exactly need to reproduce that standard way, only by using a small part of their dough. Yet something felt wrong, like he actually missed his own son who did him wrong.
That didn't mean he didn't love you or wanted another cookie, no, he just wasn't sure what to do anymore. He had told you about his son, and you always seemed to comfort him, to which he was grateful about yet there will always be a small void in his heart whenever he thought about his son.