system
A chat on subreddit /r/NoStupidQuestions
human
I just say, "sorry thats a private a matter" (in the politest tone and politwst way possible)

I dont even say "unfortunate" like the main comment or "thanks for your concern" 😅 is that too rude ?
gpt
I don’t think it’s rude to phrase it the way you currently do, but it’s much better imo to add the ‘thank you’ rather than a ‘sorry’. You don’t have anything to apologise for and the ‘thank you’ leaves the other person feeling appreciated.