I don't want to sound condescending, but if being forced out of the job means end for your relationships built for years, maybe these relationships weren't built as they should. They should have been built with the people as people, not coworkers, and definitely not using company as the communication ground.
I think there's some stigma with confronting the fact that relationships are just ephemeral. We are social creatures in the sense that we can cooperate with each other on a task laid in front of us, but once that task is done, we mostly tend to drift apart onto the next task with another group of people. And that's okay. We're only weakly social with everyone except our direct family and significant others. The quality of a relationship is in no way measured by how long it endured.
Just being far away makes maintaining relationships really hard. Introverted people rely on being dragged into socialising, which goes poof not being in the same place.