Biting into Sweet LoveEpisode 4

Rachel's biggest regret is having a one-night affair with Hunter she's loved for eight years and making him pay for it. From then on, Hunter becomes obsessed with her at night, but a stranger by day. When he decides to marry someone else, she thinks they'll part ways, but he takes her home instead. Is she a toy he can discard at will, or an apple he can't resist taking a bite of?