Arthur visits Merlin every single day for the whole month, always staying by his lover’s side everytime it is possible. No one knows if Merlin ever wakes up and Arthur knows, he just knows he is the only one to blame. He regrets his actions, it haunts him every day and night, he doesn’t remember when was the last time he slept properly since the accident had happend - and when he finally falls asleep, he wakes up horrified, dreaming about the car crush over and over again. One day, when he sits by Merlin’s side (as usual), silently praying for his recovery, he sees Merlin’s eyes flackering. He isn’t sure if he hallucinates or not at first, but then Merlin’s eyes start to open. And Arthur can not even describe what this means to him. He wants to both cry and smile, but then the guilt creeps in. He doesn’t know what to say. The doctor comes in, takes off the raspirator and checks Merlin’s vital signs. He smiles briefly while assuring both men Merlin is strong and he will be alright. When he leaves, there is a silence between Arthur and Merlin. And finally, Arthur speaks up, apologizing for everything that happened, accepting his guilt out loud. Saying he understands if Merlin doesn’t want to see him ever again. Basically, he spills everything what has been on his mind for the whole time and lets it go. Merlin doesn’t interupt Arthur’s speach, he just holds his hand and squeezes it reassuringly. He had forgiven him long ago.