"the Relentless" is your level 50 class quest title. Stop complaining that you dont have a title! Just look at the description for it in the codex. Its given out at the start of act 3 which is a bug.
Dual Spec has already been confirmed as one of the first things that will be added post launch so all you single spec masochists can just chill out with your bitter diatribes on the evils of dual spec.