@Helgi_Ingrem I mean, you say that, but barring her age, at least Kazuki's love is more... pure. Seems like she loves Kusanagi-sensei pretty unconditionally - if Arimura-sensei does love Kusanagi-sensei... it sure seems like she's more in love with her
Ideal of Kusanagi - she gives her the death glare if Kusanagi even slightly shakes from the idealised image she has of her, and even asked her not to contradict the image she had of her...
But I guess this is the point of this arc - to set up whether Arimura can put aside her idolisation and like Kusanagi for who she really is and be an actual rival, or if all she really wants is that ideal she has of Kusanagi...
...except it's kind of pointless to set up a rival, because we already know Kazuki wins because of the omake ;~;