Scapegoating is one of the most difficult life situations a person can encounter. A notorious coping mechanism for dysfunctional families, scapegoating involves singling out a member, typically the truth-teller, & pegging them as the source of all that's wrong with the family (& the world).
You are allowed to terminate your relationship with toxic family members. You are allowed to walk away from people who hurt you. You are allowed to be angry & selfish & unforgiving & don't owe anyone an explanation for taking care of you.
We repeat family dysfunction. I came from many generations of alcoholism. When I was a little kid I wanted to be different than my dysfunctional family, but I ended up just like them. Once I did become clean and sober I ended up being the black sheep of the family. Some family traditions are meant to be broken.