There was so much good stuff here but I can't seem to get over Merlin telling Arthur no.

I know, that's really hard to get past. I completely understand why he did it, but it felt so very wrong even before the Disr's revenge became clear. I think it's worse now than when he did it to keep Arthur from killing Uther in S3.

If they kill Arthur, I will not cope well at all. I can't even wrap my head around it at this point, as much as I worry about it.