WOW! Although this happened to me once (only after 3 months) and others I know of.
The problem is that this usually happens immediately after the breakup with the affair partner. He does not want to be alone. But he NEEDS to be alone in order to sort out his feelings and realize what caused him to leave in the first place and also what this has done to you.
You must be so conflicted. But you are also in the driver's seat. Do you think you would consider taking him back if he were serious about the counselling and followed through? Do you really think you could get past it? How would this affect your daughters? And what if he came home but left again? (A real possibility).
My ex broke up with his affair partner at the 3 month mark. He moved back home. My kids (teenagers) were NOT thrilled. They had been devestated by his departure but felt that they had no say in his return. That he had apologized to me but not to them. They did not want the divorce at all but felt they should have been part of the counselling upon his return.
At the 2 year mark I was just starting to get over him. I might have taken him back but not without a lot of work on both of our parts.
So - how do you REALLY feel about the thought of him returning?