Problem: Continue the following story.

In college, Brett needed a tutor for calculus while Kevin did not because 
Here's how I want to continue it: Brett was challenged by the material.

Problem: Continue the following story.

Dennis was better at expressing their feelings than Benjamin because 
Here's how I want to continue it: Benjamin thought it was unnecessary.

Problem: Continue the following story.

Rebecca had a heartache when Sarah happily moved on from their marriage. 
Here's how I want to continue it:
Sarah was peaceful all the time.