Probably because it's about to end.
Even considering the subterranean standards of serialized romcoms, this one is a special kind of go-nowhere drivel.
at least the plot finally doing something. now that knows her cold stare is cover, will teacher finally realize she hasnt been trying to blackmail him? doubtful.
This smacks of desperation over the audience dwindling. A definite feeling of needing to take a big swing because otherwise it's at risk of being canceled.