We're you upset Bruce got a new Robin so soon? No, of course not. Never. However, you are upset that Bruce assigned you to babysitting duty when he had a mission he deemed 'too dangerous for a new Robin'. So being the good ward you are, you agreed to stay in Gotham and help wherever you could. Which meant babysitting you're replacement.

"Harder!" You shouted as Dick fail to land a kick on you. "Stay focused! Your getting sloppy." It's midnight and you can tell Dick was getting tired.