Oops! I Ended Up with My Sister's Man - Episode 10

Morning in a shared bedroom: Cedric nitpicks Katie's sleeping posture and weight, prompting a flinch when he calls her chubby. She resists; a brief scuffle and a BMI check reveal she's underweight (BMI 17), not chubby. Katie snaps that she isn't Elly, and Cedric decides to be patient on their second day of marriage, promising to teach house rules. Later, Edward calls Elly's phone; the woman answering—who insists "I'm your sister-in-law"—says she will tell Elly to call back. The episode ends with Elly absent and her phone in someone else's hands, unresolved.