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its always good to forgive if its a minor betrayal. for those major betrayals- cheating, stealing, murder, lying or physically harming you or a loved one- treat it like a game of halo, boot that fucker from your life and move on.

You need to use it as fuel , the anger needs to burn inside you to create or manifest something productive. It may be very difficult but a man who seeks revenge should dig 2 graves.

Not plan a revenge, wallow for a bit then use the anger to fuel my drive to become sucessful