You also said in one of your threads that your DB Coach was unaware of the missing money as you didn't think to tell her during your session. So, the coach did not have all the information.
Protect yourself first then worry about what the DB coach says if you think that is the route to go.
My H began taking out small amounts just like your H is. In four months he used 18K of joint funds on OW. Don't be foolish. He has CHOSEN to leave so the perk of "borrowing" from joint funds should no longer be an option available to him. No marriage, no perks!