Qi Xiao Yan treated the divorce as more of a Cool Down Period for the both of them, because he knew if he left their personality clashes and problems attaining mutual understanding fester then they would really end up in separate ways with no chance of reconciliation.
Contrary to popular belief, his first love is his wife and not the young starlet that used to be his basketball team's manager ("Do you believe in love at first sight?" "No" "Before I met Yang Wei, neither did I.") .

He also tried to covertly understand his ex-wife's passion for art by signing up for her virtual class, which was a sweet gesture and showed his sincerity. He still worries about her well-being and checked his phone plus her social media for updates on her life as well as precautionary measures in case of emergency. He also took great efforts to make romantic gestures as her ex-husband turned boyfriend, which yielded hilarious results. All in all still a dedicated husband. Is it any wander she still choose him? Lousy second male lead aside.

With their marriage done hastily, they did not have the time to know each more and communicate properly before marriage resulting to their divorce. Apparently, the two leads aren't really over each other and their time after divorce became somewhat like a cooling period, getting to know each other period and courting period which they did not experience before marriage.