I have that feeling too i have a feeling that she was with him when he died but she told ruby that she was laying low for a while cause she didn't want to tell her the truth until she sees her in person again. I also think that she either hands herself in to the police, dresses up as their aunty mary (if they really have an aunty mary) and tries to sneak into the prison to see ruby and gets caught or goes to the prison and hands herself in that way. Hope that all makes sense when u read this but that's my therory