WR, The more I think about your situation, the more I'm convinced that his lawyer did get in touch w/him today and I think he knows that if this goes before a judge, he will be court ordered to pay child support and he knows that it can then be enforced.
I honestly don't trust him, but I would listen to what he has to say and then make your decision...but understand, if you go the route he's suggesting, you might not get your child support on time and it most likely won't be enforced. He knows he's in the stew pot and he's hoping that you'll be so happy to get rid of him that you'll do anything to get it over with. WR, keeps your cards close to your chest and do not show him your hand.
Me, personally, I would meet him and see what he has to say, but under no circumstances sign or agree to anything without discussing it w/your lawyer. He's made a drastic turnaround it concerns me that you may get screwed over in this.
Again, you hold the golden key to his door of freedom. Don't trust him. He's not been reliable or the kindest man out there. Keep in mind that he's allow his sons go without support money for several months and the way that he has disrespected you time and again need to be kept in the back of your mind when making decisions based on trust. Put your business hat on and look at him as a potential client, but one that is in shady dealings.
It will cease when you finish this card game and I think your h is going to show his hand very soon. If he gets nasty, walk away...you don't need to be disrespected or bullied...he's the one that needs to be jumping through hoops to get what he wants, not the other way around.
Listen carefully to what he has to say, make direct eye contact often and repeat back to him what you have heard. At the end of the conversation, advise him that you need to think about what he's proposing and you'll get back to him. I'm willing to bet he's going to want to push you to make a decision right then and there...don't do it. Time is on your side and the 13 is a week away.
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.