<human>: Can you condense the text into three sentences or less?

Back in March, I admitted to my husband that I had been having an affair with a friend from college for a couple of months. We were going through a rough patch in our marriage. We went from having sex pretty much every day to 2-3 times a month. We also had serious communication problems, and went days without talking to each other, despite living together. Regardless, I can't justify my cheating. I was wrong and I know it. My husband agreed to go to marriage counselling, and I thought I had saved our marriage. Things were getting back to normal again.

Yesterday, out of the blue he tells me that he's done with me and wants a divorce. 

I'm shocked. I really thought that we had made strides together in counselling, and that we were on the verge of getting back together.

Any advice would be helpful.
<bot>: Admitted to cheating on husband. Went to marriage counselling, thought we were getting back together. Now he wants a divorce.