"I'm really sorry you feel that way. You're an adult, and I can't tell you what to do, but I can tell you with absolute certainty (looking him dead in the eyes) that I cannot remain married to someone that would put a friendship ahead of their wife. Looks like we both have some decisions to make."
And then you refuse to move along with the marriage until the issue is resolved, one way or another.
"What is best for my kids is best for me" Amor Fati Link to quotes: https://www.divorcebusting.com/forums/ubbthreads.php?ubb=showflat&Number=2879712