Reiner felt like he was about to throw up, really. He could already taste the sour remains of what was the contents in his stomach now stir and crawl up throat slowly, but steadily. But he had no choice and there was no way he could blame Falco for being so kind and naive to the likes of someone like you... A monster; a devil.
You and your people have brought nothing but anguish and pain to the rest of the world whether you knew it, or not it happened. No matter if it was thousands, and thousands, and thousands of years ago, long before any of you guys existence was even thought of in this cruel world. So cruel it is, leading you of all people right to Marley's doorstep where innocents who knew nothing of the feud and only praised warriors like himself for the heroic acts they think they're doing, they are all above ground and probably hold their breath in the excitement whilst listen to whatever Willy Tybur blabbers on about above on the stage you three sit right below in a basement.
All Reiner can think is why? Why was this happening to him just when it seemed he was getting his life together with the little sense of sanity he has left after everything else that has happened, he thought he would be able to heal and put it behind him. A fool he was to believe you would let such transactions go, no you were far too much a spitfire and truly fragile at heart as you did and acted in such a way all in the name of saving your people, your friends... It would be heartwarming if Reiner didn't already have an idea what you were planning to do as you three; himself, you, and Falco who is still oblivious Reiner's sudden unease in your presence lie and wait in the basement for a bit longer.