You are not alone. My sister is hostile, aggressive, temperamental and often yells. I don’t deal well with it...in fact, I had panic attacks so bad at Thanksgiving that I couldn’t go over to her house. I just couldn’t put myself through it. I decided to limit my exposure to her at that time. Christmas Eve was surprisingly pleasant but I still stand by my limited exposure decision. Best wishes in coming to a decision that brings you peace and healing.