I had to laugh when I read your post - sorry, I know it's not funny to you. Your family just reminded me of me for a moment. A girl at work had WLS back in April. She was little more than a hallway, "hi, how ya doin, did ya have a nice weekend" kind of aquaintance before her surgery. But since she got back, I have this sick obsession with her. Whenever I encounter her in the hallway, I stop dead in my tracks when I see her and I always ask something inane, like, "so how much weight have to lost? How do you feel? Have you dumped yet?" I stop myself just short of asking about her bowel movements! Don't ask me why. I kick myself the rest of the way back to my office for the dork I am. I guess it's the unknown that makes it so facinating for your family. Plus the fact that they love you and have probably spend the majority of your life worrying about your weight, and old habits are hard to break.
But I understand how you feel. It is for that reason that I am being very selective about who knows I'm having WLS.
Hang in there, girl, this too shall pass.