Divorce was the worst thing that I've ever been through in my life. But, having survived the ordeal, I realized that I was often paralyzed with the fear of the worst that could happen and rarely gave much thought to the best that can happen. Believe it or not, sometimes good things happen. Stop dwelling on the bad things that might happen and be open to the proposition that something good may actually happen. This guy may actually like your OCD quirks. Have you considered that?
Give yourself a break and let it happen. It may not work out, but then again, it might be spectacular.