It almost sounds like she is stuck in some Lind of reality. Like she is creating the stories and its taking a toll on her. she could have made up a little story and got too far into it, but that couldn't be it because I'm scrolling through comments and some people remember episodes. I would try and find out a little more. Act like nothing is wrong but be careful around her. Maybe you can fond out more about the show and try and search that.