Second Chance? No Thanks Episode 21

In their third year of marriage, Sara Ryder discovers Matt Foster's affair with his student, Jenny Greer. Faced with his unrepentant infidelity, she outwits him into signing a divorce and prepares to leave after thirty days—only for her grandmother to be killed by the pair. As Sara rebuilds the career she once sacrificed for love, Matt uncovers Jenny's true nature and finally realizes how much Sara means to him—but by then, his second chance is already gone.