When my H had his apartment at first he was ok then after several months he hated being there and cried and cried so many times about being alone and without the kids. He just was so confused and as difficult as it is for us LBS's these feelings are real for the WAS and they have to figure it out for themselves.
My H moved home after 7 months and that was after I told him enough was enough. My H use to say he wanted to work on the marriage and my argument was how can we work on the marriage when we dont live together. He also agreed to go to couples counseling which we did. He did think that would help but I think it was more wishful thinking on his part. He didnt get OW out of his life entirely until two years after he moved back home. They worked together in a very small office. Once he finally left the job the R with OW continued for another 3 months. H tells me he kept things hanging on a lot longer because he was afraid that OW would call me and tell me all their secrets. I tried to tell him many times that there wasnt anything he or she could tell me that I didnt already know or have suspected. H loved me and never really wanted to leave or get a D he was just very confused. He has been out of R with OW for 16 months and we continue everyday to work on our marriage.
My advice to you is to do what you can to go on with your life and distant yourself from the R talks . She has to figure this out on her own. Its painful at times for sure but I think she will realize that life with you is where she would rather be.