You mean Ayane, Chika and Ami. But I don't think most of the class would be too moved by it, Noriko, Io and Nodoka already know about Kirin and Akira, Miku is al"high"t, Makoto and Futaba knows there are more girls, Yasu is Yasu, Touka and Otoha would be shocked, but not really shocked, Maya would roll her eyes, Uta would update her Sensei love diary, Rin knows he is already with Chika and Futaba and maybe more, Sana would be greatly shocked and Yumi would probably join Chika in beating Kirin and spare some fists for Sensei, Tsuneyo and Molly are the most unpredictable for me, but I think Molly would just go on a self deprecating rant about how she wasn't chosen yet.