@Firemorfox
Yeah. It'd be like someone working hard to become a doctor, and then their partner saying they won't be lovey dovey while they're wearing a lab coat no matter what, or someone who gets really into nature and camping and their partner decides to treat them like they're not involved whenever they go hiking.
Also, someone who has DID/MPD probably doesn't need to take/keep notes on their different personas likes and quirks to keep them consistent anyway.