my older sister was like that when i was a kid. there is an eight year difference in our ages. at times even now, our difference is apparent and she displays the same fucked up behavior.
im the oldest, i have 2 sisters, one is 19, the sister i was talking about is 23. she still needs to grow up.
My sister is also a bitch, so I can relate...her own daughters hate her. We are estranged because she doesn't want to have me for a sister. I used to try to reach out, but she quit returning my calls so I gave up. I see her at weddings and funerals and she will walk right past me without saying hello... It's kind of annoying, she's 38, you'd think she could get over her shit by now. She's insanely jealous of any time our mother spends with me. STILL.
i have learned family is not about any blood line. families are the people who love you. i have no communication with my blood family other than my mother. but, as a gay man, i am very fortunate to have a wonderful band of friends.
yes, i have alot of friends that i call my sister or my brother. I used to have a woman that me and my friends would call mom.