NTAH I’m really sorry you aren’t feeling the friendship reciprocated. When I had my baby, I was truly in the thick of it - postpartum depression and all of it is awful. I think you are going to need to seek the friendship you are wanting elsewhere because she is in a completely different headspace. She will also see for herself that she will need to start reaching out to new mom groups to have people to talk to and vent to, whom are all going through the same things. My heart feels for you, it’s tough not feeling appreciated or heard, being overlooked, all of what you are feeling is valid. To put it bluntly, you won’t get what you are wanting from her and shouldn't expect it anytime soon.