My sister throwing things at me and whipping me with the phone cord

She's still batshit fucking crazy and refuses to believe anyone but her is a victim in her life. She's gone full "ally" with the LGJdkeufbYQ whatever alphabet kids and spends her time with her "new" family claiming we abandoned her but she never shows to functions. When she did, she was asked to get off her cell phone and she got so mad she left. She'll be 40 this year.