I read a book on codependency and it was pretty enlightening as to why people get into abusive relationships. When you grow up with a parent who is abusive you learn how to function and respond to it. It is what your norm becomes and being treated nice becomes very awkward because you never learned how to be part of a relationship with a good person. As much as a person may hate an abusive relationship they find a certain comfort in the normalcy it has for them. Its what they know.
I don't know what the details are for you, but that same thing applies to many conditions. If we spend a long time being treated badly by others we allow it to become ingrained in our self worth. It feels very weird and fake when we get treated any other way. When I get compliments I tend to not accept them as truth and pass the buck for the credit to others so that I don't allow myself credit.
I don't know what the solution is to allow yourself to accept others being good to you. I don't know what will ever change my self worth. I stopped going to a T long ago because it doesn't feel like it helps me. Everyone tells me I should. I don't have time or money for it. I just vent here for free.

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