Aw. They finally made friends.
I'm kinda ready for more Rei and Kei misery at this point, but I don't particularly mind these digressions into the lives of their peers as well.
Edit: I love how the characters never have anything nice to say about each-other's appearance, even when they're crushing on each-other or trying to get along. Rei thought Tama looked like Kei because of the Tama's "revolting" stare. Hiiragi thinks nurse-sensei's eyes are "ugly". And now Hiiragi smiles for the first time, and her smile is "horrible".
Even during sweet moments, they can't help but break each-other's balls.