I am sorry to hear your sister is leaving. Mine is in georgia and im in maryland, but we went through a time where we didnt talk for a month or 2 but we realized we needed to talk to eachother and we needed to be there for one another. I guess what im trying to say that you just need to give it time and let it take its course and it will work out in the end. I know you're stong and i hope you can get through this. We are all here for you.
Max