Arthur and Merlin finally coming together was delightful, though I can't believe Arthur would think Merlin would be a cheater. I know he hardly knows Merlin, but I'd think he'd think Merlin better than that.

Merlin's magic is outing itself left and right, so it won't be long before he has to explain himself to Arthur and Mordred. I bet their reaction is going to really surprise Merlin.