Rytlock has always been emotional and irrational from the get-go. He was very, very upset about the death of Snaff. He was so upset that he didn't talk to his chosen scapegoat (Logan) for like, seven years or so, I don't remember. That is a very emotionally driven and not stereotypically charr thing to do, since occasional deaths of warband members are/were expected for charr.
I quite liked Rytlock when he was pretty irrelevant to how the story played out and was basically just there to guide the player, but find him really grating by now.
Rytlock is also the reason why we had to chase after a rouge god of war (he freed Balthazar), and somehow the damage he cause with that is never addressed.
I don't feel there is good writing around that character, he's used at any time when [event] needs [important character] to look good, but without any consequence.
He was interesting as a character, but the way it is, I find him horrible as a lead.
Another character with a similar fate is Taimi. Which is sad, because I also really, really liked her when she was introduced.
If characters are made that important, their story should be made believable and hold weight, and the game lost me quite a while ago in that regard.