Fake Marriage to Her Ex-Husband (Make Believe Brides: a Clean Romance Series #5)
Kacy Cross

Charlie Wilson has some opinions too. As the host of his own advice show, he believes love conquers all.
Now it's time for him to prove it. Who better to test his relationship theory on than love's toughest critic—his ex-wife, Carolina. The only way to prove his platform’s superiority is a bet…that he can win her back.
With both of their professional reputations at stake, neither of them can afford to lose. And neither of them realize their hearts are on the line until it’s too late.