Seeking Fang Ting

[Strong heroine + mature couple building careers]
He Fangting is the very model of a noble-born lady, with no flaws except that her imperial uncle dislikes her.
After marriage, she proves herself a capable household matron, using her generous dowry to support her husband’s family and give them a foundation at last.
One day, her husband returns from disaster relief, bringing back a female physician praised by the Emperor. Fangting admires her and prepares to treat her well—only to hear her husband announce he will “continue the family line” by marrying this woman as his principal wife, in place of his elder brother, who died young.
For the sake of her two children, Fangting resolves to protect her marriage. But later she realizes—perhaps this marriage is not worth protecting.
Her ex-husband is left heartbroken, full of regret. But what does that matter to her? Her path to brilliance has only just begun.