"We'll go for coffee or take our son to breakfast"
Stop doing those things.
Read Cadet's links. ALL OF THEM. You need to GAL. Be too busy to do ANYTHING with her. Detach. You need to distance yourself from her. She is cake eating like crazy right now. Make sure you understand what detachment is, and work towards it. Finally 180 on any bad behaviors you have. Use this as an opportunity to self improve. Get into IC.
You have to let her go to get her back. Asking her for a weekend alone is a terrible idea right now. You need to be absent from her life right now, not constantly pushing to be in it. Remember, you need to command respect from her. You don't command respect by begging and pleading, and begging for a weekend. In fact, if she were to bring it up (after you start GAL and detaching) your answer should be. "No, I know I offered that but I think it would be a bad idea."
Chasing a WAW doesn't work. Chase other things (hobbies, sports, IC, fun times with friends, being the best dad you can be), and let her do the chasing if she wants to.
M(53), W(54),D(19) M-23, T-25 Bomb Drop - Dec.23, 2017 Ring and Piecing since March 2018