Remus+mikasa
I understand what you are saying, but before you call me insensitive, let me explain my point of view. My brother, Eren, nearly died when he was eaten by a terrible creature called a Titan in my world. Humanoid creatures that lived only to eat people. He should have been dead, but instead, he changed into one of them.
He doesn't understand all of his abilities and has even attacked me once in battle mistakenly, or because he was beyond recognizing me. His mother was killed, eaten in front of us when we were children, by one of these Titans. Most of the military wants him dead. The only reason he's alive is because of Captain Levi intercepting. And Commander Pixus.
I understand this may be difficult for him, but...he's still alive, isn't he? Eren taught me to fight to live. I believe that's right, with respect.