well i have been feeling like that too but im not married im just lonely without him.
your situation is much more real you need to spend sometime with him and figure out whats missing and why the marriage between you two so long gone over..if you tow still have very strong feelings for eachother then you shouldprobaly have a talk with him and figure out what;s missing how i said..
your probaly not complete without him you need him in your life or your just probaly not usto him not being their with you.
you two being in a marriage and now seperate is not the answer get bak with him & talk it over share all of your feelings before you think or know you want to forshure let him go.
but as other;s say..you should move on and meet new people but to them they dont understand so i say dont move on its not easy.
i think you will not get better until you really talk to him and figure out whats making you
think about him and not wanting to move on.
seem;s to me you can;t let him go so dont!
it will get better if you two talk it over