Melissa and Shari, I'm sorry for both of you. This is a really tough thing to go through. I'm glad you can still be friends, your children need that.
Melissa, good for you for being strong enough to know that this is what you need and that you have to do it.
Shari, good for you for being strong enough to make a very hard decision and convey it, kindly I hope (and I'm assuming from Melissa's posts), to your partner.
I hope the best for both of you and most of all for your children, who really need to know and love both their parents.
/hugs
Dennis