[Clenches his jaw, quiet for a moment, and then stepping close to him again]
I don't know when it comes to things like this, Merlin. But I do know that if someone's managed to enchant you, that requires a strong magic. I know you're not stupid or ... or anything, to say a wish now that you know. What if it isn't a matter of saying it? What if you only need to think it or even just a passing thought?
And if after everything we've been through, after I've already told you that I know why you did what you did, what you continue to do - if you think that I would still blame you for it or think you'd actually harm me, then... I've truly failed you, as a friend. I'm no use to you here. I've known that since the start. But at least give me the benefit of knowing that you know I trust you with these things.