A Question of Trust - S1.E8

Impmon is scaring couples at night in the park, but Takato suspects Guilmon of causing this trouble. Impmon takes Guilmon out and when Takato finds him missing he suspects more of him. When Guilmon comes back, not knowing what's happening, he says he scared a couple and Takato gets really mad at him. Later, Devidramon appears and fights Guilmon and Renamon refuses to join as its Guilmon's fight, not hers. Takato forgives Guilmon after finding out about Impmon, and Guilmon digivolves to Growlmon and destroys Devidramon.