There was *something* of a confrontation between Bruce and Dick around this time. Dick gets badly injured in War Games (I think) and he's recuperating in the cave, and Bruce gives him a lecture something like "if you needed my forgiveness for losing sight of the value of Blockbuster's life, you have it. But don't think for a second that I can forgive you for losing sight of the value of yours."
That was a pretty damn good moment, IMO. Bruce may not know exactly what happened with Tarantula, but he knows that something is wrong with Dick.