You have been caught up in some nasty Family Process. It is still spinning on in your head. Just take a step back, call it just that : Family Process. Just know, you do not have take part of it anymore, in your head or with them. It is also easy to start that process with other people. Just tell yourself, you do not need to be in that anymore. Your Therapy can help you understand that process and how it works. You are making forward steps in your healing, I can see that.