WAW w/Exit Affair or WW? - Don't Want Divorce (2)

[BL42]

What is the board's consensus regarding talking to spouses about introducing kids to dating partners?

To be clear, I have not engaged in any dating and even if I had would not plan to introduce that person to the kids until far down the road. However, it's come to my attention W is onto OM2 and has had him around the kids at certain events including the birthday party she had for D2 (he's the brother of a friend of hers, which is the cover).

Should I:

A) Broach the topic generally: E.g., "I understand we both may meet and date other people but think it's important for the children's emotional well-being they not get attached, confused, exposed to someone else prematurely and we should agree to discuss with each other before either of us introduces someone to them."

B) Address the situation specifically: E.g., "I understand you're dating someone and the kids have been around him. I think it would be better for the kids if we don't introduce them to the people we're dating until much further down the line."

OR

C) Ignore the topic all together because it's likely she won't listen to me / respect the opinion (as she's already doing it anyway) and will see it as a push/controlling behavior.

I'm debating between A & C at the moment. I understand there's nothing I can do legally to prevent it but it's also important to voice my concerns about the children's' upbringing.