I mean, nobody asked you topity Airi one second, Airi was build as a "villain" with a twisted personality and borderline psycho. But there is a better way to deal with that than exposing her AND Hana, who don't ask anything in that. Poor girl got caught on the cross-fire when she is more of the victim in that situation but Glasses-chan is like "muh friend's purity, must protect her" and decide to throw Hana to the wolves. Just wait to see Yuu siding and helping Hana because she is her friend and Glasses-chan being dumbfounded, then revealing to her that she is the one behind that and Yuu rejecting her.