I thought the A/G reunion in 4x12 was the sweetest thing - quiet, understated, but full of love. I just wish it’d been better handled in 4x13 i.e. Arthur being less bipolar and Isolde not having to die to teach him a lesson.

I can’t believe Merlin left Hunith behind when Agravaine attacked Ealdor at the end of series 4. I know Arthur and Albion are his destiny and all that, but he could have taken his own mother with them so she wouldn’t be killed by Agravaine’s men. And we don’t even find out if she survives.