In this task, you're given the title of a five-sentence story and the first four sentences. Your job is to write the last sentence of the story such that it seamlessly connects with the rest of the story.

Title: Girlfriend. Sentence 1: The boy called his girlfriend. Sentence 2: His girlfriend would not answer. Sentence 3: He went to her house. Sentence 4: She had a different boy over.
The boy spied on his girlfriend and the boy.