Of COURSE he is trying to push your boundaries. You have always given him what he wants in the past, at your expense. I think you did quite well not to let him push the MBR issue. He got the message.
He is having a hard time with it because you have always let him back in before. Ha! and now you are not. Good for you, 3!
Me:49 H:47 S: 16 T:27 M:25 My EA: 2001 His PA: 10/2007, 6/2013 Separated, but H still in house
Find your Shambala: a place of peace and happiness.