次の英文を読んで、John と Susan のすれ違いとその理由を、2つの例をあげて250字程度の日本語で説明しなさい。
John and Susan have been married for ten years. ... He gets caught up in defending his actions, which leads to a long, drawn-out quarrel where both sides blame each other for all the little grievances they've been hoarding up over their years of living together.
――佐賀大学 前期日程/農・経済・文化教育学部(2月25日実施)――2006年