(Are you) sorry you asked?
Do you regret finding out the unpleasant answer to your question? A: "What brought you all the way out to this part of Arizona?" B: "Well, I was in a really abusive relationship. Finally, after nearly having my arm broken one night, I packed up my car and just drove away. My aunt lives near to here, so this is where I headed. Sorry you asked?"
(Are you) sorry you asked?
Now that you have heard (the unpleasant answer), do you regret having asked the question? (Compare this with You'll be sorry you asked.) Father: How are you doing in school? Bill: I'm flunking out. Sorry you asked? Mother: You've been looking a little down lately. Is there anything wrong? Bill: I probably have the flu. Are you sorry you asked?