I so understand where you are coming from, wanting them to want to reach out to us, wanting them to want to make this work.
Are you going to set yourself up, waiting for a phone call and then being dissapointed if he doesn't call? Does he normally call when he gets to a place? If you think that it would be devastaing to your own PMA if he wouldn't call, I'd go ahead and ask him to call when he gets there so you know he is safe? Avoid the pain. Someday they will be back on track and want us, I think we need to be patient until then. Or so the theory goes.
