It pains me to read this. I have a close family member by marriage whose family had enough and disowned her. My family stopped talking to her decades ago. I watched a video on YouTube, one of the short ones, where this guy said you don’t need love and it hit me. These types of people don’t change. I, too, want to be accepted and loved and I believe that is normal. When someone does not offer it, and they can, to me, it’s cruelty. Many years ago I learned about co-dependency. I went to counseling for over a year during the demise of my first marriage because I was so sad. Now, my STX wants to drag the divorce and this is causing me anxiety because I want to break free.
Professional help may help but there are many resources out there that are free. Try not to give them power over you.