I think our divorce was a mistake

[LGA]

After 5 years of marriage and no children, my H and I divorced. The divorce was final this past Monday. To summarize this journey to divorce: H communicated that he desired a divorce this past February. The papers were drawn up but he kept coming up with reasons to make changes in the petition. During this time, H was adament about divorcing to the point where he refused to communicate with me anymore and stated that he no longer considered me a friend. Because the pain was so great and I needed closure, I filed the paperwork a few months ago. On the day the divorce hearing, we both arrived separately and there was a bit of tension as we had not spoken in several months. We were called to face the judge and there was some additional paperwork that needed completion and we sat together and filled out the necessary paperwork and behaved like old friends. We actually held hands when standing before the judge. After the divorce was finalized, we were in the elevator alone and we both told each other that we still and will always love one another. We then proceeded to talk for over an hour (not about the marriage - just catching up). In my heart and based on his behavior, I know that this was a mistake and I don't know what to do to keep him in my life because we have no children and no other connections. Any advice would be much appreciated