If you were faithful to your SO, would you make jokes about cheating?

Would you ever joke with your partner about cheating? Like, “oh, yeah. My other girl just left when you got home. lol” If you were really cheating, would you joke about it?

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To be fair. I initiated the joke. I said something about a him sneaking a girl out when I got home from work. Which, to my knowledge, didn’t happen. So he kept the joke going for a few minutes. Then I started to feel uncomfortable and paranoid. Like what if he did have a girl over and was covering it up by joking.
If you were faithful to your SO, would you make jokes about cheating?
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