HM...I can relate to those feelings of oblivioun until it hits you smack in the face...I too thought I had it all...and everyone else thought I did as well...
Time is on your side...my first bomb was H moving out!....he was gone for about 18 months before I saw even a glimmer of hope...yes, there was an OW for a time...but he stayed gone even after things ended with her...in the long run I think that was good because neither of us was ready to get back together...
Even now...we are struggling with our R...piecing is harder then I had thought...again that ablivious feeling that if he moves back, says he wants to work things out, says he loves me that I will feel great....WRONG!....
I have faith that we will make it...but I can only speak for myself....
I do feel for you right now because I vividly remember those days that you are now experiencing...it is tough...and I am sorry that anyone has to go through it...
Do what you can for you and D...make special plans to do something regularly...get crazy with it...my girls and I joined Jazzercise!....of course this was after H came home but I figured I needed to make sure I HAD A LIFE!