Should I expose the cheater?

Dear Sex and the Shtetl,
I'm a single woman in my 30s and my cousin is also in her 30s, but she’s married. Last week I saw her husband on a dating app. Should I tell my cousin?
Reclining (and swiping) left

Dear Reclining (and swiping) left,

Oh the tangled web of modern dating apps, shtooping and shtetl dynamics. First, let me say, finding your cousin’s husband on a dating app is a moment that no one prepares you for. It’s like seeing your high school Tanach teacher at a rave or discovering your financial advisor moonlights as an Uber driver; it’s jarring, awkward and full of questions you’re not sure you want the answers to.