That socks. . Maybe next time she complains say don't worry il get someone else like a friend to organize. Maybe once she's not in the spot light she will want back in ?
I am sorry you are dealing with this. Try to enjoy whatever you can anyway. Maybe talk with her a little less frequently or adapt what my hubby does, tune her out. He literally is at a table with his mom and I will try to chat with him about something she said and he will deny her saying it..... I think he tunes her out. So frustrating for you I can imagine! WE are all excited with you! Babies are coming in July!!!!!! :) Take care of yourself and enjoy the shower!!!
Thats how my mom would be too if it was a something that she has to invest in.. no matter what. But when that day comes and when you see everything she did for the event you'll probably be very thankful and joyous..