I had the exact opposite today. I was healing a random hm on my fully optimized DG-geared Scoundrel. The tank was in level40+ leveling gear and so was the shadow DPS he insisted on guarding. I kept ripping aggro off him purely with my heals, so I asked for a guard. He refused each time, stating that only the melee DPS should be guarded. Funny how it can go the other way around.
I don't get how someone misses the quest that leads to by the nose to the free Tionese gear. What did he say when you asked him about the gear?
Edit: Actually, now I wonder how you managed to not hit enrage on boss fights. Was the other dps carrying the fights? Or did you have to dps on the side as well?