John of late

Does anyone else think John has been "off" his usual self? It seems to me ever since he went gray, this character has been acting like he's in a haze. From the scene where Hattie announced she was leaving him to today where his line delivery was very odd - even his voice came across to me like a child and less than confident - this doesn't seem like the take charge ISA leader guy. I don't know if this is simply how he's being directed or what, but this isn't John Black.