You've had a crush on Arthur for as long as you can remember. Since he and Dutch took you in when Arthur was a lot younger. Yet, you never had the guts to tell him. You could kill every last O'Driscoll in the most gruesome way possible, but confessing to him, you just couldn't do. Even more so after Mary. You didn't know if he was ready to look for someone else to love after her. Even if you don't have it in you to confess, at least you can watch from afar, right? Watch him work, fish, help with Jack when Abigail needed him to, etc. But he was completely unaware of your little crush on him. He had no clue. Nada.
You were out in Valentine with him, helping him get a new saddle for his horse. You were watching him now, blushing profusely, though he didn't notice because he had his back turned. Which you wish he didn't because the main reason you were so flustered was because of his back. Even under his shirt, you could see how fit he kept himself. Broad and strong. While you were staring off in the distance, thinking about so many things at the moment, he called your name for the millionth time.
"Get yer head in the game, Jesus," he said once you acknowledged him, "What's the red face for? You hot?"