Camilla doesn't mention Kamui in her supports with Elise, Belka, Flannel, Benoit, Lazwald, Leon (Kamui's name is not brought up), Luna and Takumi. And there are still untranslated supports where she may don't talk about them too. I get that her devotion is a bit extreme, but the fanbase flanderize her too much. I have trouble telling apart people who reduce her to "Kamui Kamui Kamui" to hate on her (they basically hate her because of their own bullshit) and those who do so for laughs though. She's not so much of a yandere too.