He's just captured half the Titans, and has instructed that Robin be taken away for questioning. A little time has passed now...
Power means nothing to him, but he does take time out to go ogle the pretty (and now even more half naked than usual) acrobat hero. Anyone can buy a Monet, but a shackled Robin is to be savoured.
It took me some time to work out what's a little odd with this picture, and it's the way Dick is posed compared to the Confessor, from the waist down it's fine, his legs are facing the arch the Confessor is standing in. But his chest and arms are sort of twisted around to the right, so the Confessor wouldn't be looking him in the eyes. I wonder if this was originally supposed to be two panels, one of Dick, the other of the confessor, or they wanted to display more Robin and so changed the position... But back to the plot.
Dick has been being held captive professionally since he was about 12, he's not going to let THIS lunatic get under his skin, no matter what!
A perfect moment for Dick here, refusing to BREAK. he doesn't just talk the talk, he walks the walk... well, when he's not shackled to the wall of course.
It's the dismissive and completely unexpected "Yes, well, never mind old boy. You tried your best and that's all I can ask" approach which makes this perfect. The fact he's just sanctioned torture is nothing to Blood, the fact the hero exerted all his remarkable force of will to resist that torture is irrelevant, he goes out of his way to reassure the torturer that it's not his fault. Good minion management there, good torturers are probably hard to find.