I have to agree with the above... take a giant step back. Don't see him, don't talk to him.
I found myself in a similar situation. We were having MFM with a guy who was also a friend.(mistake) He started to have feelings for me. He was using the L word! Freaked me out royally!! On myside I was also caring too much. We stopped seeing him in a sexual way. Not long after he moved out of the state. We do still keep in touch but have not played since.
Good luck and keep talking with your husband!!
