I found my uncle on a sugar baby site

Idk what to do! So I signed up for seeking arrangements and as I was scrolling I saw my step Uncle. Thought ok maybe somebody is catfishing, but my uncle tho is like average not male model. Bio said Doctor and it is 100% him. He’s still married to my Aunt and at family gatherings she’s always acting like things are amazing. I’ve always sensed they weren’t. Idk do I tell her or leave it be?

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