Most people think forgiveness is about letting the other person 'get off the hook', about doing the other person a favour.
But actually, forgiving really means releasing that moment from the past. 
Personal freedom from the moment which caused pain.
Why waste even a second on something that happened in the past?
How can we focus on creating our future when our mind is wasting time on the past?
Let it go.
Move on.
Find freedom in forgiveness.
Oh and don't forget...
Forgive yourself too!