I would suggest going back to the way your life was before these interactions with your W. Don't invite her to do anything with you and your boys. Don't try to explain anything to her. Allow her to come to you. If she is going to be upset because you were stern with your child, which shouldn't be a big enough deal not to overcome. There are bigger issues to deal with.
And like ovrrnbw said, don't say anything about the realtor and paperwork. Those are your emotions talking and you are trying to illicit a response. It won't work the way you hope.
Also, you should stick to one thread for fluidity.
Me:45 ExW:48 M:04/97 3 Bombs & 2 ReCons 1st BD 11/10 D Finalized 4/20 D-16 S-14 Going in one more round when you don't think you can. That's what makes all the difference in life.~Rocky Balboa