y’all have gotta stop seeing classic soap opera relationship drama writing as “NTR”. you don’t have to like it, you can hate it and all, but the author isn’t writing it because of some recent fetish trend. it’s just to add drama to the romantic narrative
anyways this did surprise me as a move from Tei, but I think it can make more sense to me if I understand it as her responding to Okayama’s suicidal thoughts and despair. Tei is a practical and protective person who responds very deeply to people’s emotions, and tries to fill the role they need her to be if she thinks she can save them or help people that way. it’s what lets her be a good actress.
I do think she was “in love with Okayama,” but we also see at the end that the “love” fades now that he’s ready to face the future. When she clasps him to her chest, it’s more motherly than erotic. So basically…..love but a love that was in response to a certain man’s pain and suffering, love that only lasts as long as a brief existential crisis
(references to butterflies and reveries staring into the kamado throughout the chapter, this sequence is like the “butterfly dream” of Tei’s love life)