Not only is it possible, it’s probably more common than you know. People who have a traumatic history often categorize people as either “good” or “bad”. Early experience has taught them to be on guard for “bad” people and to be overly reliant on “good” ones. The problem with that childhood conclusion is that people don’t generally fit neatly into one category or the other. Some very bad people do good things or have good parts. Some very good people disappoint others by doing “bad” or clumsy things.
Black and white thinking about others can lead to unstable relationships. People deemed as “good” are put on a pedestal. But if they disappoint in any way, they are immediately pushed into the “bad” column.
One of the most difficult challenges for adults who have had a traumatic childhood is to start thinking about others in more complex ways. Really good friends can inadvertently hurt us. People we don’t like very much can surprise us by doing something helpful. The challenge is in learning skills to make good judgments about others while still allowing for their humanity. Since people come from all points of the spectrum from good to bad, it’s essential to have those skills in order to make solid relationships and to do well at work and in the social world.
Dialectical Behavior Therapy (DBT) has been shown to be very helpful for learning those skills. Although originally developed for people with borderline personality disorder, it is also often used to help people with a trauma history. I urge you to look for a therapist who is trained in DBT to help you be less extreme in your thinking about others and, even more important, to help you be all you can be in a world where people are often unpredictable.
I wish you well,