DEAR ABBY: I am a 67-year-old man who has two sisters. Recently, I was at my younger sister “Mitzi’s” house, installing some blinds. While there, I received a phone call from my girlfriend. (We have been together nine months, after my wife passed last year.) My girlfriend and I were discussing finances, including the topic of my older sister, “Carolyn,” borrowing money last year.

A few days later, Carolyn called me, upset that I had discussed our financial arrangement with my girlfriend. (It turns out Mitzi had recorded the conversation on her Ring cameras while I was there alone.) Now, both sisters are mad at me. This all started when I told Mitzi that associating with her ex-husband who verbally and physically abused her years earlier was a mistake. He was arrested for domestic violenc

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