How do you navigate divorced parents?

My parents separated in 2019. They were married for 14 years. My mom is biological but my dad adopted me. My biological father died when I was 12.

Ever since they split, they dont have a good relationship. He ignores her but invites me to visit him. I visit her more than him. They are neighbours. It is a lot of work to visit both of them and spend hours there. So I visit one at a time. Last time I visited him, she watched from the window and got angry that he hugged me. Now she is mad he invited me yesterday and she knew I was going there. When I got there, he told me my aunt is coming too with her husband. My aunt is my mom's sister but they fell out and don't talk. I wasnt pleased about this but I just kept quiet and stayed. I did text mom and told her I wouldn't talk to dad about sth she had asked me to ask him for help with because my aunt was coming and I didnt want to create a situation where they would all start talking about my mom. I didnt tell her anything else about what happened either. Now she telling me if I have a conscious I should think about my actions. I cant talk to him without her being upset and also when I keep quiet, she tells me I should not do that. I am really stressed with their fights and I feel like am being blamed. My dad wants to claim taxes but she aint opening or answering his calls and he told me to talk to her. I told him I would rather stay out of it and he too smirked at me and said I should do what I want.

I just hate this. I feel like maybe if I leave this city it will be easier.