Ok, you have gotten some great advice here, maybe you should read back through it! I would say that you dont argue with her. If it starts to escalate, tell her that you need to go and will call her back because you dont want to fight. Other than that, can you get your D's one of those prepaid cell phones? Or could you make a plan that they will call you everynight at 7:45 or something like that? If she starts to get chatty with you, tell her that you have to go.
This will help you detach, and you have to, have to, have to detach. I promise you that the less she is in your face and in your thoughts, the better you will feel! You may not beleive it, but its true. Its totally counter-intuitive, but I promise that it works.
Steve is right, you havent really honored the separation, havent you gone to OM's house to see if shes there? You are desperate, if I can see it in your posts, then she, the woman who has known you for 9 years, can see it in spades. And that desperation is a HUGE turnoff!
I guess I gave the wrong finger to the wrong man...