Small cultural note, there's a bit of a joke with saying his head turned into a flower field, as in Japanese that's an insult saying someone is airheaded/empty-minded/stupid, so Kuroi may have thought she was talking about him being drunk.
Still, Haida has been super adorable this arc, I'm loving it
Can't believe Kuroi managed to get some random girls to flirt with him though, that's insane.