[Initially, Jean freezes when Marco hugs him. Honestly, he wanted to get through this without tearing up, but it was a mission impossible. Marco just broke the dam, making tears appear in the corner of his eyes.]

But... if I'd looked for you, I might have reached you in time... maybe you wouldn't have overheard them or- I could have killed the titan before it reached you...

[These are things he plays in his mind often. Scenarios of saving him. Somehow. Living in a 'What if' mindset. It was tiring.

Perhaps, in a way, he just needs to get all of them struck down. Accept that there was nothing he could have done. He couldn't do it on his own, for some reason, even if he knew deep down he wasn't at fault.]