Family dysfunction

My family split with the divorce when i was 5. My sister & brother (older then me) went with my dad and i was left with my narcissist mother. After that i felt like i was an only child. My brother has resented me for most of my life for bs in his own head about me. Anyway, my dad’s side of the family is extremely dysfunctional with lots of bulling & passive aggression. Fighting is our favorite sport! I have uncles & cousins i haven’t seen is years. Anyway, i just found out that one of my cousins is in town visiting my brother and will be at my sister’s house (10 miles away) tomorrow. She has to ask to see if i can join them for dinner tomorrow! Dont that beat all! Forget being asked for dinner with my brother tonight. He wont share any of our family with me. Wasn’t even invited to his daughters hs graduations nor was i told 2 of my uncles where in town for them. The bs is insane and broken hearted again!