Yeah, it was Dick had found out at the same time that Bruce was secretly funding the Outsiders and "Batman" was Roy's informant. It was a little too much all at once, thus Dick's hissy fit. Can't say I blame him.
Can't say I blame Bruce for his infuriating stoniness either, given that half the thing Dick was reproaching him, he hadn't done.
I love the art on that page, the colouring job gives it incredible depth.