Why not. I'm willing to try something new and what have I got to lose? Here's what I wrote (made a little less terse):
"Thanks for writing back. I should clarify -- I don't blame myself. I wish our marriage hadn't entered a rough patch, but it's unrealistic to think that it wouldn't. The way in which you decided to handle that situation, however, is entirely your choice and I won't take responsibility for it. I can leave this marriage feeling good that I did everything I could to make things work.
Yes, we can talk, and I'll continue to be civil, courteous, and pleasant, but the intimate friendship we shared has been broken and it's hard for me to see that it'll ever return. As sad as I am, I accept the situation though it's not what I wanted. I'm more sad, however, that you don't even seem remorseful for what you've done."
