Dear Prudence,
I was browsing a men-seeking-men dating app when I came across the profile of my neighbor, “Gary.” He described himself as “single and looking for fun.” I happen to know that Gary is married with two kids under 3 years old. The thing is, I don’t know his wife “Bethany” that well; we’ve only ever waved to one another in the neighborhood and briefly engaged in small talk when we run into each other. Is it my place to say something to her, or is this none of my business?