I'm sorry for what you are going thru.
My grandparents have been gone for over 10 years now, and I still miss them dearly everyday.
I think you should talk to her directly. Ask her if she feels there is a rift between the two of you. If you've always been close, then I'd think something must have happened for her to act this way. With all those teenage hormones, the least little thing could have set her off. Give her the chance to express her feelings so the two of you can work thru whatever the problem may be.
Good luck!

My grandparents have been gone for over 10 years now, and I still miss them dearly everyday.
I think you should talk to her directly. Ask her if she feels there is a rift between the two of you. If you've always been close, then I'd think something must have happened for her to act this way. With all those teenage hormones, the least little thing could have set her off. Give her the chance to express her feelings so the two of you can work thru whatever the problem may be.
Good luck!