User blog comment:UpperEastSociety/Pam vs. Karen/@comment-31282641-20170211163248

I liked Karen a lot too, and she showed us another side of Jim, which was interesting. BUT, Jim never cheated on her with Pam. In fact, after Karen found out that Pam and Jim had had a "thing" in the past, she asked him if he still had feelings for Pam, and he said "yes," which is what led to their eventual break-up.