I read something disturbingly that raised some questions as to where Eren knew Armin was visiting Annie in the Crystal and that the fandom is now pointing with their finger at Hitch and suspecting her to be one of the 'Yeagerists.' Personally, I don't think much of this theory, as there are some points that militate against Hitch being a 'Yeagerist.' In the first place, Hitch never shared a kind of friendship with Eren. Basically, she doesn't know him, because we only saw her with characters like Mikasa, Armin, Jean and Marlo. The second point is that, at that time we had a conversation between Reiner and Bertholdt about Annie in the big tree forest. There we found out that Bertholdt probably loved Annie. It was back in Chapter 47 when Ymir and Eren were kidnapped by Reiner and Bertholdt, and Eren could have overheard the conversation. Presumably, Eren remembered this conversation back in the big trees forest then and just put things together, since even only the military knows about Annie's stay and so the same does Eren.
The next thing I want to say is that, if Hitch were a 'Yeagerist', then she would have known about the Zackley assassination, because Floch confirmed at the same time that some of the 'Yeagerist's' had bombed Zackley off. Hitch looked really shocked and surprised as Zackley's corpse has crashing out of the window, so why does some people think she would be on Eren's side? It makes no sense. Even as Hitch, guarding Annie's crystal and caught Armin, she promised not to betray and banish him, since she visited even in the past times Annie's crystal too and spoke with her. For me it seems that Hitch still sees Annie as a kind of friend and doesn't feel any hatred for other nations, not like Eren who still sees Reiner, Annie, Bertholdt and all Marley as his enemies. Of course, she might hate Marley, especially Zeke, as he is the main reason for Marlo's death, but since we've seen her relaxed and grown-up in Chapter 110, I honestly doubt that Hitch would ever hate others. She is simply not a vengeful person, plus she was caring about Armin and Mikasa as the building get's exploding, but who knows? - 1 month ago