AwSnap - BIG HUGG to you!
It hursts! It sounds like your sister does love you but the cult has a hold on her that she can't see the obvious. I like what you wrote her. Reminding her that it is HER that is hurting your relationship and how you feel about it. My brother has shunned me but when confronted tries to make it like it is MY choice?! It's just cult mind thinking. Best wishes any day you'll be a MOMMY!!
Love,
FS