Explanations

First things first.

You guys remembered how he met Malia and how he knew everything about her, in the beginning she was to emotional to care but afterwards questions were asked. His answer

" I saw visions of the feature"

He did take money from the Hale Vault which most of the time Malia is the one who spends it. While he himself would rather use his claws and get everything for free

The Hale House

If you haven't noticed yet, Christian is not completely sane nor stable, plus he spent a year fighting evil spirits. He simply feels more at home in places like that but since his pack or some of his pack will be living with him he decided to fix it up

Laura Hale

When Christian took her alpha spark he did in a way that made her fall unconscious( as seen as when Peter awoken a little after they left), so that when he and Malia are at school Dereck finds her like that and his behavior doesn't change completely from the one he had in the original

That and he simply want's to spite him because he reminds him of Sasuke from naruto

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Christian's Behavior

He is intelligent but most of the time he'd rather use his fist than his brain to solve any issues, so sometimes he may come off as impulsive but each of his actions has a purpose but most of the time only he himself knows

He is extremely manipulative but you can never tell since his behavior is so erratic so people can't get a read on him

Anything I missed?