Arthur chances another peek at Guinevere - he can't help it! - and sees himself waiting for her.

Other him is definitely smug and why not? He has the wife of his dreams!

Arthur might be a little jealous of himself.

But! He's not going to let Morgana be proven right, and he focuses right back on her. "You're not been fair, how was I supposed to ever guess you'd betray all of us. Even Guinevere."