I've been there before. I'm going through it with my mother right now. Its hard when a family member puts everything else above you or pushes you aside for their own selfish gain

Oh, hun. I've been there too. It's definitely hard. But If it hurts you let it go. Maybe in time things will change. Hoping for the best.

i’m kinda in the same boat as well. my brother basically disowned me after blowing up on me over a laugh reaction on facebook. he’s extremely unstable and delusional. sometimes it’s for the best.

Sounds like you need to set clear boundaries that prioritize YOU first. You may need a good amount of space from your sister before you can even do this. And that is okay!! I’m sorry you’re in this toxic, imbalanced relationship dynamic. You deserve to be surrounded by REAL “good person energy” - which means equal input, random acts of compassion, and unconditional love.

There's only so much you can do if they're not also making an effort. Sometimes you need to develop a sense of apathy for your own mental health. If you believe that she is making a genuine effort to improve her relationship with you, you can make a decision. Until then, treat her as an acquaintance: be polite, but don't go out of your way for her. At this moment in time, trying to create a relationship with her is just going to make you suffer.