People say the story got slow after the 1st half, but I beg to differ.
The story got FUNNY after the first half.
The first half is typical rom com trope -- main characters get together, second lead creates some misunderstanding between them, they break up.
And the second half could be really infuriating to watch if you don't like the second lead winning the lead's heart, but I found other more enjoyable things that made the watching process super worthwhile: the comedy.

The comedy stems from the characters' complicated relationships. Essentially we have our female lead who falls in love with an intern at her work, only to find out this intern is her new boss's son after they break up.
Also, this new boss and second male lead are friends, so new boss encouraged second male lead to chase the female lead and steal him away from male lead... only to realize later that the female lead's ex-boyfriend is his own son.

Also, second male lead has a niece, who is classmates with male lead, and confessed to the male lead...
but then later on the niece and the female lead's younger brother start dating...
(so if Minmin x Canyang and Luming x Fanxing were both couples... how do they address each other and their family members LOL
For Minmin, are the female lead's parents grandaunt/granduncle or mother-in-law/father-in-law?
For Fanxing, is Minmin her spouse's niece or her younger brother's wife?)

The step-by-step realization by the main characters, as well as by their colleagues, was a HUGE watching point for me as their facial expressions were often very telling. The family drama is also A+... the characters have so much chemistry.

Another thing to watch out for in the later half is male lead Yuan Song's attempts to win female lead Fanxing back. He has his parents on his side (omg when his dad found out his ex-girlfriend was Fanxing... that reveal LOL), as well as a new female colleague who was kind enough to lend him a hand.
His eyes and his hidden smiles when the female lead reacts according to his wishes...
beautiful "giving Luming a taste of his own medicine" work haha (in terms of being calculating in winning the female lead)

In the final few episodes we see some early themes come back. The leads' relationship started with the female lead saying things to male lead while drunk, and *re*started with the female lead drunk-calling male lead again.
And the ways they got each other to accept their love was also essentially just mirrors of the same conversation (and Yuan Song acknowledges this by saying "isn't this scene familiar" in the hotel room)
I'm all for dramas that do scene throwbacks like these because it shows the scriptwriter really put an effort in making things come full circle.

Finally, the side characters' quests for love and marital happiness were also super interesting to watch -- a huge fan of the cheating husband arc involving the female lead's best friend; it really added to the story about women in their 30's.
And the main characters' character development -- beautiful.