First, go and complain to everyone you know for as long as you can trap them to listen to you, even though they don't want to and don't care about your immature drama, and do that for about 5 years and build up a ton of resentment and bitterness and anger toward that person, which probably spills over to other relationships and ends up eating at you and possibly defining you as a bitter and angry person.
Lord, help me to show love and grace and forgiveness and have the courage to face difficult relationships head on with truth to the specific person so that I don't end up like everyone else who avoids the solution for something that isn't a solution.