You are absolutely not the asshole.
What your twin is doing is deeply hurtful and shows a complete lack of empathy. You’re not annoyed because he’s dating some random girl; you’re upset because he’s dating someone who traumatized you, someone who contributed to your self-harm, your mental health struggles, and your lasting scars. That’s not a “difference of opinion”; that’s a betrayal. You have every right to protect your peace and distance yourself from anyone who makes you feel unsafe, even if that person is your twin.
Your mom is understandably upset, and your dad is clueless, but you shouldn’t have to sacrifice your mental health to keep the family happy. You are striving to survive and recover, and it is profoundly unfair for anyone, particularly your brother, to introduce your abuser into your haven. Standing up for yourself and going no-contact (or low-contact) is a healthy boundary, not an overreaction.
AITAH for pretending my twin brother doesn’t exist?
