Midori claimed to be interested in Reina as a closer friend, but everyone else figured out her real interest in Reina's large bosom.
The 2nd special took us back to the pool episode. We didn't get coverage of Midori's obsession with large breasts.
Midori claims a big breast reminds her of the fermata sign for a prolonged note. Sure, we'll go with that.
Midori's immediate change in focus to Asuka confirmed she was just spewing BS. She just wants the oppai! She even called Asuka "Oppai-Senpai!"