Write the next sentence in this paragraph:

How to forget a friend
Acknowledge the good things about the friendship.
Keep in mind that a friendship with a best friend is a relationship just like a romantic relationship. Relationships have a beginning and, in many cases, an ending, and getting closure for the relationship will help you move past the friendship.
Think about the good times you had together and the reasons you became friends in the first place. Look at old pictures to reminisce about some of your favorite times together.