Deadass can't understand what's so bad about this chapter. It felt like a good ol suffering ala Shingeki.
I can get the previous ones, with everyone surviving and the whole shit with Zeke and Armin on paths. But seeing this it makes it all worth it because in the end, is all cruel lol
From the looks of it, the Attack Titan was trying to free Ymir from her bullshit with being trapped making sandcastles. And keeping into account that it has time traveling shenanigans, then it seems it was stuck in some sort of loop, in which Eren would go back to the save point (when he wakes up by the tree as a kid) whenever the timeline would get fucked.
In the timeline Mikasa sees, Eren choose to give up on the war. As a result nothing gets solved, and Eren dies with regrets.
Because Eren got access to all those memories, he asked Mikasa what she felt for him, possibly to make sure on which timeline he was or what tf he was supposed to do based on her answer.
Also lol bc Gabi got fucked. That was cathartic as hell