Given the task definition and input, reply with output. In this task, you're given a four sentences of story written in natural language. Your job is to complete end part of the story by predicting appropriate last sentence which is coherent with the given sentences.

Sentence1: Whitney and Kayla used to be best friends. Sentence2: Then something happened. Sentence3: Kayla started dating someone. Sentence4: Whitney and Kyle's friendship ended.
They no longer talk and they broke their bond.