When an isolated communicator's sense of self-efficacy increases due to successful mediated communication, he or she is likely to increase the amount of time spent in mediated communication and become more isolated?

As per the event given above, the communicator will likely spent more time in the mediated communication. This is because there was a reward from the success that was brought by the communication. If he tends to be more isolated then it would be a negation of what actually is the purpose of being able to communicate well with others.