Time really does help, but sometimes that means a lot of time.  I also suggest reading about grief and abandonment; there are quite a few good books out there.  It really helped to validate my feelings.

I'm a little late to this thread, but I can definitely relate. I spent most waking hours and way too many sleepless nights going over and over what went wrong, and hoping that she would soon realize that she had made a terrible mistake. I am finally at a point after a year-long separation and 4 months divorced that the whole obsessively-thinking of the ex has subsided. I'm still angry at her for giving up on us, but that too has dwindled. At first, my blood pressure raised to the point of needing medication. My doc tells me now that I could get off them soon. Sleeping pills really helped me get thru many a sleepless night. Now I don't even think about needing to take one. I guess what I am saying is with time comes healing (I know it sounds corny). I didn't think I could ever get over it, the pain, the despair, the anger. Now I see promise in the future, I'm actually a little excited by the possibilities. If you need help sleeping, get some Ambien or Lunesta from your doctor (and only take them on those particularly bad nights). Allow yourself the time to go thru the grieving process. Welcome to the club, you're in good company.

I feel for you and even after 135 days into my separation  I'm feeling what your feeling and this isn't even the first time for this 50 year old lady to be down this road!  You'd think I'd have it figure out but I don't.
Just know that God is there with you and he loves you.  He has a plan for us and our happiness on down the road but he's not ready for us yet to be there.  Our time will come but it might take awhile or maybe it will be this week! When you have noone to talk to talk to him he listens and answers in his time.  God bless you and be with you.

I was there as little as last week.  I just kindof snapped out of it.  I had a good crying fit last Thursday and haven't cried since.  This took me 4 weeks to get to.  In the meantime i took lots of prescribed antidepression meds and moved out of the house.  That helped the most because I didn't have to see her everyday and be reminded of how much I loved her and was hurt that she didn't want me anymore.
Sure I still have bad days but the extremes seem to be over.  Good luck, it does get better.

I'm at that same place right now. He won't even talk to me. i did nothing wrong. so hang in there. i just read a lot when i can't sleep. you have no idea how many books i've read in 3 months.