Not to get too therapy about it, but hurt people hurt people, and Grace wouldn't need help if everything weren't already a secret. Or if she could turn it into creepy bloody funny magic, like Fiona. Or if she could pick her battles, like Kevin does. Or pretend she's a cartoon character, like Eleanor does. Or turn it into a game, like Eddie. "How am I supposed to help her, if everything is a secret?" Grace doesn't even know half of what she knows, not even that she carries her mother on her back like a dead dog; that an indefinable cloud hangs over their house, infecting everything.
If she could stand for one second to look the monster in the face, and see who it really is, it would kill her, so she's stuck. Reality and intuition are not lining up. So she stays quiet, and if she takes any satisfaction in that it's because she knows what's going on, on a level she can't access. Jackie does the same thing, punishing Imaginary Grace by taking Eddie to the movies, not because she wants to hurt Kevin or Grace but because she can't trust them anymore, to stay in their boxes. Grace is a lot less smooth about it, but the fact remains that Grace isn't being petty, or abusive: She's defending herself from her attacker.
Jackie's post office box is a thing we didn't know about. Inside there's a receipt, so maybe this is a new thing, and a statement from a secret bank account: Pharmacies all over the city, filling scrips we didn't even know she had. It's not a killer amount -- $654.25 -- but it's stress we didn't know she was under. She pops some sugar-free gum and gets a money order.
It's a full moon, so get ready. Coop's all, "Totally called it!" and they brush by him, and Jackie mutters asshole, and without looking up from a chart Eleanor's like, "Totally called it." Thor runs around stressing, and there's madness everywhere -- Zoey runs past yelling at an allergic bodypainted sports fan, "Fun when you did it, not so fun now!" -- which is the perfect time for Jackie to bring up the money. Eleanor thinks Kevin was stalling because Jackie makes more money than he does, but Jackie demurs. "No, it's no fun to talk about money when you don't have any." Anyway, Jackie tells Eleanor, he's agreed to let Eleanor set up the college fund. For the girls.