How much physical care did Harold provide personally for John after Number Crunch, while John was moving from hotel to hotel? It would have been risky for too many people to be clued in on John's location, no? And Harold is not going to risk losing John because of a betrayal again, so he decides to take care of John as much as he can by himself.
Reese, Finch - between Number Crunch and Super, carer!Finch