As parts of Married-Bore: You give gifts at engagement parties, wedding showers AND at weddings.
HOWEVER! The bride and groom never ask for gifts directly. NEVER. It's always done through relatives that throw parties. You can register for gifts, BUT YOU NEVER IN A MILLION FUCKING YEARS TELL ANYONE THIS DIRECTLY OR EVEN PUT IT IN THE INVITATIONS.
Call her back and tell her unless she's admitting to being a crazy psycho bitch money grubbing bridezilla, wedding etiquette states that the bride NEVER asks for gifts or even says where they're registered in any form of invitation, either via email, letter or phone. It makes her look like a tacky tacky bitch.
But you already know that she'z a tacky bitch, right? I mean, getting divorced and married immediately?
Yeah, I'd still call her.