Her poor, finer sensibilities.
As she should. She has a long way to go but not as long as before, which matters.
What could be more important than flirting???

Maybe she practices a new song and get a surprise visit from a tanuki. Or something. Wonder how many times it would take for Chinatsu to realize. With the nicer weather there will definitely be a lot more hawaiian shirts, more and more colorfully and with interesting patterns.