What you are dealing with here are those certiain "friends" and relatives most of us have, who die a little bit inside each time we have some sort of success. You distance yourself from them yet they pop in from time to time just to remind themselves how much they resent you. They are often looking for you to say something that will justify this resentment.
Give them blank vague non committal answers and hope they get a clue and their contact with you becomes less and less frequent.