Forgiveness restores relationship, prevents you from holding a “grudge”, and eliminates the need to take “revenge”.
However, forgiveness does not mean to restore trust. Trust is earned.
If a person has been abusive or untrustworthy, we can and should forgive.
However, don’t leave yourself in a vulnerable or dangerous situation – that would be foolish. Forgiveness does not mean that you need to be a doormat.