Have you ever had (or been the victim of your partner having) an affair?

I have, by two different partners, and both times hurt badly. I felt like I did something wrong to make them want to cheat on me even though they were the ones in the wrong. Still, it made me feel like I could have done something different to make them happier with me.

So, have you ever had an affair whether it be physical or emotional? Has it happened to you? I won't judge you if you were the one to have one, I am just curious as to what drives a person into doing it.
Have you ever had (or been the victim of your partner having) an affair?
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