Hello (((WHO))). I am sorry for the torment that you had to endure for someone elses insincerity. The main issue is that you dont blame yourself for what happened to Tianna. You need to focus on a state of recovery you can manage to help you feel better emotionally. Holding on to the past is not necessary since she is gone at this time, but getting closure to the situation is a necessity if the past is still causing you harm from a lack of closure at this time. Therapy can help you move along with your life without having to feel guilty for someone elses issues and problems. Take care and best wishes. Soidhonia