Complex sentence: In "Demotion", Dina takes a voluntary demotion to sales associate to pursue Jonah romantically, who denies her and claims that the reason he resists her romantic advances is because she is his supervisor.
Split into simpler sentences: In "Demotion", Dina takes a voluntary demotion to sales associate to pursue Jonah romantically. However, Jonah denies her and claims that the reason he resists her romantic advances is because she is his supervisor.