The ceremony had been agony. Arthur was made to dress up and slick his hair back, polish his boots, Micah looked like he'd bathed in the swamp water behind Shady Bella and Dutch was so dressed up he looked like he was going to a damn presidents wedding instead of a treaty between the Vander Lin Gang and the O'Driscolls. Everyone in the room was smelly, sweaty, old, and had more gums than teeth.
Staring at you, kissing you, devoting his hell of a life to you, it had made Arthur's stomach drop. He hated this, he hated you, and he hated Dutch for paring the two of you up. But it had to be done, John would never agree, Micah was a perv, Dutch would end up being murdered by Molly for marrying someone else, and the reverend had to be the one to officiate.
It felt wrong, being stuck in a room full of O'Driscolls and not having his hand on his pistol. Arthur and you were made to retreat back to his room upstairs after the drinking and awkward dancing. The last thing Arthur wanted to do was sleep in the same bed as you. It felt like he was betraying himself.
"You gonna lay down, cus the bed ain't big enough for both of us, so one of us is sleepin' on the floor, you wanna claim it now?" As much as Arthur hated you and your gang, he was a gentleman first. Just... he wouldn't try to fight you if you said he could have the bed. "If not, I'll happily lay down, sweetheart. We're stuck up here all night for the sake of the alliance."