For this novel, we need to find a solution somewhere in the prose that answers the question of the title. What is this Truth About Forever? Is it that no matter what happens, we all die in the end? That is what Macy suspects throughout the book, and she ends up feeling distraught throughout her time of grief and mourning, because the pain of loss is so intense she is becoming permanently frightened. She had never imagined pain like this, so what's to say life won't continue to get worse? She fights to find answer to these questions in her friendships, but the truth is actually the friendships themselves.
When her father passed away, Macy was made to wonder what her self worth was. No doubt, having a loving parent to support and teach a person is a huge advantage in life. Does that mean she won't have anyone to love her? Will she atrophy for lack of support? What happens to someone who is truly alone? She has to think about these questions because she is alone in her suffering. Her friends have problems, but they are never as severe as Macy's. But does that mean Macy is alone?
Macy wonders throughout the novel how she fits in with other people, but perhaps the answer to this family death is a new family life. Instead of finding her identity in her father only, she can choose to mourn him, knowing that she keeps part of him in her own self. Then, when she's sharing that "self" or personality with her friends, she is honoring his memory by continuing the family love. That is the secret about Macy's friends. They are also her true family, because they are the ones who support her during her season of grief.
