This is very hard. Maybe the hardest thing you will ever do. Best thing to do is to process these emotions. When you are alone cry, beat your pillow, scream etc. whatever it takes.
The hardest thing is understand you have zero control of the outcome and can feel your family slipping away. The second hardest thing is understanding that everything you should be doing is counterintuitive than what feels right to you. You can not nice your W back. You absolutely should not be her emotional support system.
You are doing great with Gal but it’s very obvious you are looking for clues that she is softening. Your best chance for reconciliation is to go as far as you can in the opposite direction. The longer that takes the more time it gives her to solidify her position with other male.
You want her to be unsure where she stands with you.
"What is best for my kids is best for me" Amor Fati Link to quotes: https://www.divorcebusting.com/forums/ubbthreads.php?ubb=showflat&Number=2879712