Help! My Kids Are Hiring a MomEpisode 9

Twin genius kids Leo and Bella place a $500,000 ad to find their single dad a wife. Their target? Kristen, a broke jewelry vendor fleeing an arranged marriage. Desperate, she agrees to a fake marriage with "broke security guard" Dominic. But as Kristen falls for the kids—and the man—she discovers his Rolex is real, his mansion is real, and his twins share the same birthmark as the babies she lost five years ago. Who is Dominic really? And what happened the night her twins died?