Is there a term in the English language that specifically denotes a man involved in an extramarital relationship with a woman, from within the context of the extramarital relationship?
There are plenty of specific words to connote a straying spouse from within the context of the marriage (cheater, philanderer, etc) but I can't think of any within the other dyad, as might be used to finish the phrase, "between a mistress and her _____."
Words like lover and paramour would work, but are not specific to this situation, methinks.
The closest discussion I could find on MeFi is this question
, but that's not quite what I'm looking for...