Kajikawa is a bit slow to act on anything, and so she respects Ichihara's initiative and loves how he takes the lead and will pull her along. But sometimes she can't keep up with his easygoing nature.
Ichihara had thought that they were already half-dating. After the events of the main story, he finally realised, 'If I don't properly show my affection to her, she's never gonna realise how I feel!', so he's started to say things he was too embarrassed to say while they were friends with benefits, saying that he loves her, that she's cute, using sweet words during noon, evening time, whenever. It's about to get too much for Kajikawa's heart.
After announcing they would no longer be friends with benefits, it was too painful for her to even see his belongings, so she sent all of it back to him, including small gifts, consumable goods that would be a waste not to use, and a pair of drinking glasses that he bought on his own and left at her house on his own.
When Ichihara saw the package she had sent, he cried.
