1. Some people are naturally polyamorous

While some affairs last for years, they can still be mentally stressful for both parties involved. You’ll always be at least a bit worried that someone who knows you will spot you out with another man or woman, making it difficult to truly enjoy the moment with the other person you’re with.

No matter how awful your marriage might be, you always feel a tinge of remorse whenever you find yourself enjoying too much of the time you spend with this other person. After all, there was a time when you felt the same with your wife or husband.

However, for some people, those feelings of stress or guilt never truly arise. This is because they don’t actually feel like they are doing something wrong. Marriage feels wrong to them; they see it as a social construct of staying committed to one person for the rest of your life.

And since they never truly feel remorseful or guilty for something they believe is natural for them to do, some affairs last for years.