That understanding helps, in a way, but it doesn't make him feel better. It only makes him angrier. He draws in a breath, and lets it out with an audibly tense huff.

"He was there as long as I remember. A voice in my head that kept me company when my parents were away." They had been away too much. Too busy rebuilding the galaxy to spend time raising their son. And then they'd sent him away to his uncle, for fear of him being influenced by the Dark Side. Vader already knows how that turned out.

Snoke had had it easy with him, and Kylo hates how many of those early memories remain somehow fond even knowing everything he knows now.