So many shirts from returning the jean. He said it depends on if she wears all of them to judge if he spent too much "useless" money. It's easy for her to wear them everyday because she's a girl.
When her brother left for bath, she's thinking about the change Ren had.
Earlier, Ren saying thanks to her for stopping him from beating that guy up badly.
Ren is in pain for what he did (into killer mode).
She was worried about Ren getting into the shower too long, so she barged in to see his body! And he said want to join? She refused by saying she's making dinner and that she was worried that he felt asleep.
Then she regret about her action earlier (barging in) ... and she always see his face...
He came out and went to sleep without eating, and he said it's too late already.
She was nervous about if she was doing her role well. Then she realized his cloths (hinting about taking care for him), and a watch (not wearing private thing for work) that stops working at 2:13!