I can see where you would be confused. That is an awful long way to come on a whim. If you talk to her again, ask her straight out how she knew you were having problems again. Any chance your mother told her?

Be careful. You are in an emotionally fragile state right now, and perhaps your ex is as well, and that is when people get a little closer than they should considering they both have spouses. I don't mean that as a cut down, its just that people in pain sometimes reach out further than they should.

Since you two are still good friends, it seems to me that asking her why she is coming, if she is ok and how she knew you were having a problem is not out of line. At least you will have your questions answered.

Good luck in treatment. I really hope it helps.

Sam2