It sounds that the R they had is dying. One thing to ask yourself, and it's good that you posted here first before doing anything, is to ask yourself what good will come from you contacting OW? Stop and think about it, will it really help YOU and YOUR CAUSE? I have to struggle with this very same thing still, and I am piecing my M back - though on a bumpy road.
If it's just emails, it's just emails. Sure it bothers you, it would bother me too! But from what you just posted about your H, he chose you, right? I would focus more on your H and your M and let the OW go. She's NOTHING! She's obviously trying to test the waters with your H but you know she's in the wrong and you have your H now.
I would not contact her, but simply write her off. Your H is the one that needs to cut her off, and he's trying to do it. You can help by being the spouse you need to be. Be happy that he is with you, and continue to re-build a new and wonderful marriage!
~Sol
~~~~~~~~~~~~~ Single Dad, and luvin it! ~ Happiness is a state of mind ~
