The reason you cannot have real friends in that religion is because they will become your enemy at a moments notice. They think you've "sinned", whether you have or not...they will turn your ass into the elders in a New York second.
If your name comes up at the meeting as "no longer a Jehobo's Witness" they will never speak to you again. You can't develop real and trusting relationships when there is that kind of tension permeating everything surrounding you.