When Mo and her husband Alex move into a new apartment gifted largely by her parents, she throws a housewarming party to mark their fresh start.

But the celebration takes a shocking turn when

Alex and his mother Barbara announce their expectation that Mo should give the apartment to Alex’s sister,

Katie—a single mother of three

. Mo is stunned, especially as her husband appears to have plotted this with his mother in advance.

Barbara tries to manipulate the situation, painting Katie as the one most deserving of the home.

But Mo’s parents, Debbie and Mason, anticipated such betrayal.

Debbie calmly tells Barbara that the apartment is solely in Mo’s name, as per legal documents prepared when they paid most of the down payment.

When Alex tries to argue, Mo reminds him of the prenuptial agreement he signed: anything purchased with her family’s help belongs to her alone.

He realizes he has no legal claim.

Barbara and Katie are shocked and panicked, and Mo’s parents firmly defend their daughter.

Alex is forced to leave with his mother and sister, humiliated.

Later, he meets Mo at a café to apologize and plead for another chance

. But Mo, hurt and betrayed, makes it clear that the trust has been broken beyond repair.

Though he begs for forgiveness, Mo refuses to forget the public betrayal and chooses to walk away.

She leaves the café stronger, knowing her love for herself and her future matters more than salvaging a relationship built on lies.