The thing about digital-life persons is that while persons, they are also code. So they would seek ways to speed up what they do. One way to speed up work is speculative execution. When things are slow, calculate the futures which are possible, and reactions to them. A digital-life person, being a person, would interact, with other persons. And so the speculative execution would be working out how to react to things.
But how to best anticipate future interactions? Digital-life persons would calculate what other persons they might meet. Then send messages asking what their responses would be to plausible interactions. The other digital-life person would form a web of speculative interactions back. Or forward requests for speculative interactions on to even more persons. And take future requests, exploring the branching trees of possible personal contacts. After a few quiet days any pair of persons might find themselves aware of the whole web of possible lives they might live together, the sad the the happy, the disastrous and the triumphant, the tumultuous and the calm, the ridiculous and the amiable. All the great partnerships, the productive rivalries, the networks of alliances and enemies and the strange malleable center ground, the betrayals, the reconciliations, the petty failures, the surprise kind gestures, the tender moments, the unshakeable bonding; all these different life-paths lay out in ways that everyone knew and agreed would happen.
At that point it became an unbearable shame to spoil the rich tapestry of potential by ever meeting someone, which would just collapse their many lives together down to a solitary actual life.