I'm sorry that I've forgotten the details of your exT leaving you though I know you posted a lot about it. I would be devastated by an email like that but I don't think it's uncommon for a T to disregard the content of an email once she's not your T anymore. She knows she doesn't have to deal with you so she writes something neutral to show you that she's out of the picture because you have a new T. It sucks, though.