No, I don't want to tell them their dad is a cheater. That may come long down the road...the only other reason I would ever tell them is if he winds up having a 'legit' relationship with OW where the kids are around her, or he lives with her, or marries her...shudder!
If any of those happened I would want to be able to tell them why mommy does not want to hang out with daddy's new friend...I mean if/when he has a relationship with someone else I will have to learn to deal with it, as will he with me. But I will not be able to just jump on board with that if it turns out to be ow...
Ironically Dan could not stand GG in high school. GG was a wrestler and Dan hated all the cocky wrestler types. Plus he was on the golf team with Dan. Dan has said on more than one occasion how he dislikes GG...however GG went to a pro golf school after high school and has been employed as a golf pro. I can only imagine Dan's face if he ever heard that GG was helping teach Nathan to golf!
However he does not get to choose who I date after we divorce, after all he didn't ask me for approval of who he dated while we were married!!