This is exactly what I am struggling with right now. I just posted a long conversation with myself. I feel like I'm losing my self respect also as my H is doing who knows what with OW. And like you GTI - my spouse and I have continued to interact and it is really painful. But all of the posts on your thread have inspired me.
"We have to be willing to stand up for what we believe in even if it means losing it."
I am on the brink of drawing my line but it's that fear that after I draw it, that's it. But I know I've got to overcome that fear.
That is great that you did it,GTI. I hope it brings peace to your heart and mind.
M:36 H:36 M 3 Y T 8 Y No kids Bomb 6/30/08 PA I filed 9/29/09 D final 1/22/2010