How do I get through the days when i want to go back?

Wow, what a tough place to be in. Still wanting to be there and on the other hand facing the reality: is he really there for you or are you just filling a need for him. Will he be off and running once you fulfill his temporary need?
I have not seen my stbx since he walked out at the end of September. I quit calling to negotiate or just hear his voice last week. I want to call every day but know it is not in my best interest - is he really here on earth for me (I think not)...
I hop on this site quickly or pre-occupy myself with something/anything to try and move forward.
Wow - this "D" stuff must stand for death instead of divorce. With death we must grieve, bury the life we had, and move into every day with the Power of Faith and Hope. 
Sharing is healing... Stay strong :) 

Thanks, everyone, I appreciate your thoughts and support. I'm such a pushover sometimes, it makes me sick! The good news is that I wrote in my journal earlier this week, that I'd me stronger and more distant and stand up for myself; this is kind of the first real test. I think I'm doing okay so far. He asked me to ride the train (about a 2 hour trip), he'd meet me at the train station and then we'd drive together(!) to breakfast at a place we'd been meaning to try when we were still together(!!)

It was all I could to do not go, but I'm not. I explained that it's not healthy for either of us to continue seeing each other, especially for me since my company seems to make him feel that I've somehow forgiven him. Basically, it's like, seeing each other is good for him, but bad for me, and since I got used to compromising myself for all those years, a small part of me still wants to see him, just because I know he'd like it(!!!) I know, it's sick and I'm doing my best to change.

The good news is that our breakup affairs continue to move towards conclusion...it makes this whole thing seem like a phase, something temporary. Even though I've still got some feelings for him, I'm hoping that as we have fewer and fewer reasons to need to talk, the time between each conversation will grow in length.

Try this...write down on a piece of paper every bad thing he ever did to you, worst ones at the top (i.e. cheating).  Be detailed.  Keep the list close to you at all times.  Whenever you feel weak or like you want to take him back, or he tries "sweet talking" you, look at the list and read it.  It will help sharpen your focus and keep you in the right frame of mind.

Hi,
I'm going through almost the same situation.  Right now, he's asking me to come back and that he knows that we can work it out over time.  It's only been a month for me and surprisingly time has gone by really fast.  I miss the good times, though I know that if it was all good, then I wouldn't have left.  We were married for seven years and had been talking about starting a family.  I found out that he was having an affair and it shattered my world!  Even after all of that, I still miss him.  I know that it is natural to miss someone after spending so many years together, but remind yourself that you got the shorter end of the stick.  You no doubt gave this person the best years of your Life and Love, put up with their shortcomings like a pro and now you get repaid with betrayal.  Stay strong.  I'm not there yet, but I would like to think that I'm on the path to healing.

I recommend reading "Split" by Suzanne Finnamore.  Her memoir of divorce deals with this kind of situation, where she kept on sleeping with her ex and couldn't manage to separate even though he had someone else.  It's wonderfully written and she gets through this situation over time, showing all of us how that will happen to you too.