>>58703That chart doesn't seem right. I've read a CDC study on sexual partners, and their numbers were way lower.
Anyways, I wouldn't be surprised if people with a higher partner count have a more difficult time staying in a long-term monogamous relationship. I don't think it's impossible, but I think variety can get addicting for some people, and they find it difficult to stop once they've started.
This is all just personal speculation, though. I don't have any hard data available. I could be wrong.