This has nothing to do with this thing of ours.
		Originally Posted by flinde
			
		
	
Except that the OP and alleged offender know each other 
as a result of "this thing of ours."  Setting aside the former's desire to vent -- and to somehow, anyhow, retaliate against the latter for the offense -- I appreciate the warning to regard the alleged offender with extreme caution.
That said, each of us is responsible for his/her financial decisions and choices of partners in "this thing of ours."  On this point, flinde, I am in violent agreement with you.