Paolo was getting the brunt of Tony’s oddness. He’d tried to keep close up tight, but the boss was putting up a barrier, despite Paolo’s efforts. Tony was taciturn and ‘locked in’, often literally. It seemed like he was carrying a huge burden of guilt about his brother’s death which Paolo couldn’t understand. Paolo obviously knew full well that Tony was entirely innocent of Terry’s death so he wondered what other recriminations Tony was meting out on himself and why.
Maybe Paolo could push Tony over the edge. And maybe he had a little something to help him do it.