Mr. OCD is gone

If you are a friend of mine of Facebook your probably aware my husband left me this week. Everyone has been so supportive and I am so thankful. Everyone also keeps asking what happened. This is what happened.
We haven't had a big fight in over a year. I was very happy and we went to Costco to get our monthly food. I had planned out all kinds of meals for the three of us. You know how that is you have a plan in mind, a few of his favorite meals a few of your favorite meals a few of the kids. We put everything away and he was helping more then usual, I figured he was trying to get a nap in and I thought he deserved one.
Then he said we need to talk. He said that he has been seeing a therapist behind my back for two weeks because he thought he was unhappy within himself. He has realized that he wasn't sure if he loved me. He was going to see other people and I would get to decide how that went and he was going to leave for a night so I could think on it.
Before he left I told him he could live with me and we could work on it while he dated other people. Then I went and told a friend and as soon as the words were out of my mouth I felt so stupid. I packed up all of his stuff and e-mailed him. I told him he couldn't live here. I meant that he could live here if he insisted on seeing other people but it was late and I was in shock still. So he took it as he wasn't allowed to come back and I kicked him out of our apartment.
So the next night he didn't come back. Then on Tuesday he did come back. By then I had decided I wanted to fight for our marriage and there would be no dating. By then he had decided he had never been so happy as to be freed from me. He wasn't attracted to the person I am and wasn't even going to try to seek marriage therapy or a trail separation. He was "done". He took some stuff and left.
My seven year marriage ended in three days. Now I am a single mom with no income waiting on a disability claim and fighting over alimony and custody.