You realize that if the two of you are seeing each other even 'just in a work capacity'...you'll never get over it, right?

If you are REALLY going to work on your marriage, you're going to HAVE TO find another job to ensure that NC does stick. Otherwise, you're just wasting your time.

Take it from a BH...over time, with work, your feelings for your H can and will return. They did in my wife's case, and we've seen it in countless other poster's situations here as well.