To some degree, Marco expected hesitancy from Reiner. It's very obvious he's not doing well, even if he doesn't truly know the breadth of it just yet. Marco isn't offering forgiveness, but being kind to your killer still isn't what Reiner expected, he's sure of it.

The sob breaks his heart in two.

He doesn't even think about his next actions, calling Reiner's name before he sweeps forward across the floor. His gaze catches with Galliard and he uses the hand he'd extended to grab Galliard's other hand, and he drags both of them - Reiner and Galliard - into a hug.

He can't quite get his arms around both of them, but it's enough. He pushes Galliard to Reiner's front - he's sure Reiner needs someone from his home right now - and presses himself to both their sides.

"I've got you, Reiner," Marco tells him, shushing and cooing softly, pressing his cheek to the top of Reiner's head since he's curled inwards and shorter than Marco for the moment. He doesn't lie and say it's okay because it isn't. "I'm not going anywhere."

He'll hold Reiner as long as he needs.