I understand and totally empathize with your situation. I would suggest you just let her know you're there if she needs anything. Send her your phone number, cell number. Express that ANYTHING means anything. You can open the door that way. There are times when my siblings and I have gone through months without speaking, but when something happens, we all can depend on one another. The only way to fix the situation is to take the initiative, if only for your own peace of mind. You can only do what you can do and what others allow you to. I wish you much luck.

(((Hugs))) <-- if you want them.

Take care.
(btw: Stephanie is my only sister's name)