What to say to the other woman that doesn't know of you?

So the thing is I know everything thinks he's horrible etc I just know how I have to handle the problem it's what to say to her I have to handle it this way cause this is how he works but I never said your all crazy I'm just saying answer the question what should i say a b or c.

Thanks for all your leave him he's horrible advise etc. But never got the question answered and no need for anyone else to respond. I reached out to her autonomously as someone said saying that you saw them out and now we have discussed it. Good luck to everyone.