Simple conflict

Recently, my friend seems to have prioritized another one of her friend over me. I am angry at myself that at age 22, I’m unable to confront her or deal with my hurt feeling. All I want to do is cut her out of my life even though it is such a small problem. I’m worrying that I’m unable to form any meaningful friendship with anyone because I keep cutting them out of my life whenever there’s a conflict. I know that this reminds me of the many people who have taken advantages of me in the past. The people who lied to me, sexually abused me and taught me to not talk back to them or go to my parents for help. I am reminded of the feeling of being taken advantage of. The feeling of being completely helpless.