It sounds like she's just in a mood. Cats can be pretty susceptible to stress in the household even if they aren't directly affected.
At the moment, it doesn't sound to me like it's anything to worry about. If she stops eating, drinking, or her litterbox habits change (less or more,) I would call your vet, but for now I'd just keep an eye on her.
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The Boys: Maisie, Zephyr, and Cullen.