It’s a really confusing situation with those three characters right now, I still think Zeke is trying to control with him, I still think of Zeke as the villain, look at all he has done so far and still doing it with the His spinal fluid.
So the theories about Zeke making everybody a Titan true, He is creating a Army , he is trying to Control Eren, Which I think wilt happen, Eren probably knows his plan.
These chapters keep getting crazier and crazier