After a lifetime of being screwed over by family, "friends," and colleagues, I certainly understand. Whether it was being swindled out of my parents' inheritance by my scumbag brother, or being stabbed in the back repeated times by co-workers, I understand.
Over the years, I have developed great respect and admiration for those who have exempted themselves from virtually any and all human contact. Call them "aloof;" call them "reclusive." Whatever. I respect them and envy them. They don't help anyone. They don't hurt anyone. They just don't want to be subjected to the human condition, which is inherently evil and will ALWAYS corrupt itself and others. They live their lives in solitude surrounded by what they love. Good books. Cutting edge technology. Music. Art. Whatever.
They just don't want to be bothered. Good for them. Unfortunately, that type of existence - which I heartily aspire to - requires extraordinary financial resources. Far and away from what a nurse, or for that matter, 99% of the population earns.