How does this PSA support the claim that friends can help someone who is being bullied?

It shows an image of a young woman listening to and supporting her friend who is being bullied.
The slogan states that friends need to support each other when they are being bullied.
It shows an image of two women who are shown being bullied and tormented by someone.
The slogan of this PSA says that bullying is harmful to those being bullied and to spectators.