ellis hasn't even been able to grieve his own baby, or what he thought was supposed to be his baby. he's only been focused on fatima — on how to help her, how to understand her, how to figure out what he needs to be for her and what they can do. but it's all been way over his head, and he's made it very clear he has no idea what he's doing or what he's supposed to do (and frankly how could he in that position...?)
and he feared the worst from the beginning.
"it's just weird. you know, it's like, uh, I just... there's a person growing inside of my fiancee, and anywhere else in the world, I mean, that would be great. you know? I would be thrilled, which I am. but here, you know, I just... I just keep expecting that at any second, it's gonna come bursting out of her with, like, with fangs and claws."
but he tries so hard to be positive about it because that's who he is, and it comes so easily when it's him and fatima, and he works so hard to counteract all of her fears about it and be positive for her — to the point that they end up having these same fears but ellis is trying so hard not to project them, because he doesn't want to put that stress on her.
"he's happy again. actually happy. and he's working so hard to be encouraging, and i can't... i can't tell him how scared i am. what if there's something wrong with the baby?"
he trusts fatima and he wants to believe her; she's worried that she's losing her mind or that something really awful is happening but he refuses to believe something's wrong with the baby because he can't think of it that way, he doesn't want that stress on fatima. when things start getting worse for her, it's "it doesn't have to mean something's wrong with the baby" while she worries that means something's wrong with her, and that's what he puts all his focus in after that.
because once they find out there's no baby, it gives them so much more to worry about with fatima and what she's going through and it's all ellis can think about. he can't consider that they lost a baby, or that they might have never had one, because he's spent all this time believing that there was a baby and trying to stay positive about it and now he has to put all his energy into trying to take care of fatima no matter what, even when everyone's warning him that he may be in danger.
and he's messy about it. trying to steal drugs even if there's no way to know any of it will help, because he just has to do something. "you're not the one that's sitting there watching her go to pieces" — ellis is always the most desperate when he's trying to help / understand his family (even when, with his dad, it was desperately pushing him away.)
"what am I supposed to do? huh? tell me, what the fսck am I supposed to do? I don't know. okay, I saw it! I saw what happened with your fսcking worms! and I saw what happened to... I saw what happened to mom, when she... which fսcking nightmare am I supposed to be afraid of? which? you know, she's fսcking falling apart right in front of me, and I don't know what to do. I can't do anything to help her. dad, I don't know how to help her. don't let this happen, dad."
it's the way he and his father are both seeing the similarities between fatima and ellis's mother, and his father is seeing the similarities in the dynamics and trying to understand what he could've done differently with abby — and ellis also knowing it's his responsibility to do differently, to try to protect fatima from a similar fate. he refuses to leave her side even when all signs point to her being dangerous, even fatima herself saying she's putting him at risk by being with her. he can't know that she won't hurt him but he believes she wouldn't anyway. and so much of this is about him still not quite processing what happened with his mother but also at the same time trying to correct what happened to her with his own wife. because "when she died, the way she died, i can't go through that again, i won't."
and he's so ready to take the fall for fatima's crimes just to spare her even though it doesn't fix anything and it doesn't actually help her other than not turning the town against her. and logically he knows that. but he has to do something. because he thought they were having a child together and instead, his wife is sick and all signs are pointing to her having a mental break that feels all too familiar and he needs her to be okay and he can't think about the baby, or the baby that never was, or the baby that could've been.
and now that he knows what that was and what fatima had to go through after what they'd thought it'd been, he's really still not going to process what he "lost." because maybe he didn't actually "lose" anything. because it was never theirs.