Are you sure you can't call or meet F2F? I've been told repeatedly that writing your message is a less than brave way to go.
As for what to say, does she already know you? I forget...
If not, you might want to begin with "My name is _____ and I am not a telemarketer." C'mon, you know you smiled.
But really, just be candid. Explain who you are, who your W is, and that she is involved with this woman's husband. Offer to give her the evidence if she wants it. It will possibly be a nasty shock for her, so don't take her initial response personally or assume it is permanent.
You can do this.
undefeated 24 H 24 S's 4, 2, 1 M 5 yrs
"Most of the important things in the world have been accomplished by people who have kept on trying when there seemed to be no hope at all." ~Dale Carnegie
