Thanks for the quick summary. It sounds like OW might be telling the truth, but if you go with the assumption that "all cheaters lie," it's hard to put much stock in it.
Do you think your husband would be willing to enter into a full no-contact/transparency agreement and plan with you? Even if the relationship is one-sided, he will not be able to begin to receive anything from you (nor certainly GIVE anything to you) so long as his brain is addicted to even the FANTASY of this OW.
