Is it wrong to sleep w a guy who has a girlfriend?

I want to, he wants to. I'm trying to turn off the nagging feeling but it's on the back of my mind. While typing this I've already convinced myself not to. Why do men waste their time in a relationship if they aren't going to take it seriously? It is so annoying.
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5 mo
Best I've ever had & a serial cheater 🙄
Is it wrong to sleep w a guy who has a girlfriend?
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