How can I resolve the matter of a PA publicizing my personal requests?

This could be an easy one normally, but culture, revenues and cashflow are below par. Think I've found a catalyst in the culture issues. Integrity should be core to her role and I now suspect tip of an unhappy iceberg. I'm furious this as have far less about the subject matter. Confidentiality for a PA is key and I have far more vital things to deal with. e.g. "Why is Paul needing dry cleaning to other team members."