This is episode 64 of 66 of Loved Him Before He Knew. Play it below, then continue straight into the next episode — the whole season is free and needs no account.
The closing stretch of the season, where the arc pays off.
Lin Wu secretly loved Song Ye for five years. Forced into an arranged marriage, she moved in with him, but he suspected her of being his stepmother's spy and mistreated her, unaware she had quietly helped him during his most vulnerable times. Only when she left did he realize his deep love for her.