LNMW, I can see both sides of the coin here. It sounds as if your W is opening up to you some, but you will have a long row to hoe, so to speak.
Not sure about the advice in practical matters. I would ensure that you get the matter in writing, that is for sure.
How would I feel? I would be surprised and grateful, but I would also be skeptical. I would suggest that consistently being friendly and kind and putting your daughter first will count for much more.
I think your W is moving closer to you but this is not something that can be undone easily.
I would have to say that in CLOSE m/f relationships, one person or the other often secretly wishes the relationship were not "just friends."
M: 16 years Bomb 4/07 OW 20s long gone Divorced 11/09 I remarried New Guy Cooperative r w/X regarding D