"Not much, at least." Because Tim is still here and knows, and it's going to come up. So Dick is all right talking about it. It's just weird.

And then his little brother brings up part of the reason for Dick seeking him out, which makes his job so much easier. (Not that Tim has realized that it's part of reason. Yet.)

"Kon's easier because he's here, I think. It's easier when you can see it with your own eyes, you know?" Which is when Dick turns his full attention onto Tim. "Well. Easier for me."

Not as easy for you isn't SAID, but the weight in the air means it's certainly implied.