Searched the forum and couldn't find anything similar.
I'm 25 and had a letter on my bed that I was reading from the morning. Mum has come in to talk to me, then I go to the toilet. When I come out of the toilet, she then asks me a question about a financial matter on the letter. I responded fairly sharply "what are you doing reading my letters for?"
She seems angry now, but a bit confused as to next steps etc? How should I approach this?
EDIT: Caught her doing this before and said that it would be ideal for her not to do it and she apologised, if that helps with context regarding my reaction.