

AITH for not caring about having a relationship with my sister’s baby?
I (24F) am the youngest of five siblings. My older siblings are Mia (32F), Tyler (30M), Ethan (28M), and Ryan (26M). I've always been very close with my brothers, but my relationship with Mia has never been good.
For as long as I can remember, she acted like having a younger sister was some kind of punishment. She got along great with our brothers but wanted nothing to do with me. If we played games as kids, she'd avoid being on my team. If we went out as a family, she'd walk with everyone except me. Even when we got older she barely acknowledged me unless she absolutely had to.
My parents tried everything. They talked to her, sent her to counseling for a while, and constantly reminded her that she didn't have to be my best friend but she did have to treat me with basic kindness. Nothing ever changed.
What hurt most was that she would go out of her way for everyone else. She remembered all my brothers' birthdays, called them regularly, and bought them gifts when she traveled. Meanwhile she'd forget my birthday every year and never once brought me anything. When I was in high school and struggling with bullying, she seemed more interested in comparing us than supporting me.
As adults things never improved. She invited all of our siblings to different events over the years but usually left me out. The biggest example was her wedding. Every sibling was involved except me. I wasn't invited until other family members started questioning it, and by that point I didn't even want to go.
Now she's pregnant with her first child and due in a few weeks. There was a baby shower recently and I didn't attend or send a gift. My parents found out and told me this could be an opportunity to repair things and be involved in my future niece or nephew's life.
The problem is I don't really want to.
I don't hate the baby obviously, but I don't see why I should force a relationship with a child whose mother has spent over twenty years making it clear she doesn't want a relationship with me. My parents keep saying becoming a mother might change her and help her mature, but I've heard versions of that for years whenever she hit a new life milestone.
At this point I feel like I'm the only person expected to make an effort, and I'm tired of trying.
AITH?