Trusting dont worry about it, my ex didnt tell me his temporary address when he left and he was there for 6 months allegedly before moving in with the then ow, he then moved in with her and it was only when the solicitors letters were flying at me that I discovered his address, to this date ex as never told me them or home phone numbers, it is all a coffuffle in their lives. Having said that when I moved out I didnt disclose my new address but it took ex or wifey less than a month to find out where we were, its a case of its okay for them to not let you know anything about them but they want to know things about you
