I read thru your old thread, you might want to check out some things on the Mid-life crisis board as well.
I understand how you feel and what you are going through, I can only speak from my experience, but when he pulls away it usually means he is involved with an OW, either the old one or a new one. That is what my XH does, and you sorta got evidence of that when you looked at his facebook page. I think it is out of guilt, they pull away because they feel bad for getting close to us and not wanting to come home to us, basiclly for using us! Mine has done it several times, mainly during the back and forth with OW#2. I have allowed it though in hopes that he will feel better when he is with me than with her and realize he wants to be with us. Mine is a very complicated situation for many reasons. OW#2 is gone for good now, but there will be someone else, as we live 700 miles apart and he refuses to "date" me unless we are in the same city.
I would just continue to only respond when he contacts you first. I doubt his breakfast invitation was only to kill time, if I don't want to be around someone, I can find another way to kill time than to go to breakfast with them.
Hang in there! I know it is hard to come on here and tell what is going on and not to get a response, it has happened to me several times too, I will respond and help you as much as I can, but it is all just my opinion, so take it or leave it. I will pray for you, it is sooo hard on the kids, I hate it for mine so very much!
A
Me-40 XH-44 T-21 M-18 Div-19 mo. D-18,S-15,D-11 Bomb-7/07 EA,PA Mvd out-9/07-to give me space mvd back-12/07 mvd out-7/08 back with OW since 2/08 OW broke it off-1/10 in and out of tunnel and our life since!!