I get it, I think when she found out he even was horny on main for her mum, I guess, even when he was younger she's not really processed that. There's clearly some event either the circumstances of how her parents got together or broke up that's left her with some scars. I'm guessing her trying to become a proper yokai is trying to fill that gap?
They're both holding back from each other really and I think something external will force them together or they'll stumble upon a test that hits at the heart of one of or both their matters.
Lets hope they don't hurt each other before then
