Amy, oh my God!! This is your sister? What about some compassion or understanding.
I don't think you will ever get it from her so I would stop sharing. She is incapable of comprehending your situation. She is not a friend, she is a cold mean women.
In my opinion I would go NC. Who needs that in your life. Stop engaging and expecting something from her that is impossible to ever receive. She is just toxic!! Maybe in time you can revisit your relationship, when you are a stronger, healthier person!!!!
We can give "sista" hugs from the midwest!!!!
((((((((((((((((((((((((((hugs my friend!!!!)))))))))))))))))))))))))))))))