My best friends are all church people. No nurses.
In my early 20's, however, my entire social circle was the nurses from my job. We were all young, newly married, and at the same place in our lives.
When we started having kids, we all drifted apart, and other than the occasional Christmas card, I never see them.
I will always treasure those times. Our group was very "St. Elmo's Fire", and part of me will always miss what we had.
Life goes on...