I was the guy on the end of that a few times and as was previously stated, it does take two to Tango. He is as guilty as you are of committing adultery.

So what do you do?

In my opinion, stop seeing him completely. If he works with you then you have some difficult choices to make because it is obvious he has some feelings for you town. But you need to put distance between you and him.

I think inside you know what you need to know otherwise you would have not posted what you did with such openness and regret.

I am new here myself but I have already found this to be a non-judgmental safe place. Take advantage of that and learn from the wisdom of others who have been through what you are going through. I don't condemn you and I don't think anyone else here will either.

Peace sister