It sounds like you're looking for information on the tenth episode of the anime (also known as More Than a Married Couple, But Not Lovers ).
Akari tries various ways to get Jiro’s attention. While she initially wanted to be with her crush, Minami Tenjin, she is beginning to realize her genuine attraction to Jiro.
The episode focuses on the growing tension between the main characters, Jiro Yakuin and Akari Watanabe . Jiro struggles with self-consciousness, often feeling he isn't good enough for Akari and apologizing for small misunderstandings.