Scholar as healer??

[Iolair_Silverwing]

So right now I'm in Haukke Manor, (yes right now, fairy is pretty much auto piloting heals) and the Archer asked who the healer was. The Thaumaturge said I (Scholar) was. And I said I thought I was DPS (since Arcanist is) and the tank proceded to call me "retarded" (duty finder, go figure)
He said my job is to be healer primary, and support. now I know I can heal, but I've been dpsing since getting the scholar job, and have ran dungeons with conjurers and white mages as a scholar.
Am I mistaken in thinking I should focus on DPS first, heals second?
Or is my tank the "retarded" one?