Why does frank cheat on April?

Frank cheats on April due to a combination of personal insecurities, a desire for validation, and the complexities of his relationship with her. He struggles with commitment and feels unfulfilled, leading him to seek emotional or physical connections elsewhere. This betrayal reflects deeper issues within himself and their relationship, highlighting the challenges of intimacy and trust. Ultimately, his actions reveal a lack of maturity and an inability to confront his feelings directly.