Well, I'm sorry to be so blunt but honestly you and your husband tried to communicate with her your issue and she acted very immaturely. Let that be a lesson learned that you and your husband and son are all you can worry about. Let her be how she wants bc you and your husband can't change or help her. No, I don't think your crazy either (: Cling to God, your husband and son, they're all that matter. (: and pray for everyone in the world, it's all we can do. I know how you feel.. wanting relationships to be healthy and not fucked up in families but sometimes it just doesn't work out the way we'd like. Hope this helps.. God bless (: