I am a little jaded but I will say this I have a good feeling that with DB on my part my W would come back. The fact that she is pregnant with OM child finished it for me, I am a LBS who had to choose not to continue.
Oh man, that has to be one of the toughest things to endure, my heart really goes out to you on this one, lawless. My question to you is, why do you think she would want to come back? Is it because of her being w/child and feeling vulnerable, is it because she now realizes you're the one she wants to be with, supposed to be with? And why do you think DBing would make the difference?
