Life is precious; good friends are not numerous, but their actions are significant. Cherish them. Feel grateful for them. Show them that you appreciate them. And do all this as often as possible. Be grateful for the bad ones too, as they helped you see the good ones for who they were. I am grateful for any friend that has come into my life and proved to be in the bad category, because it helped me to recognize and appreciate the good ones.
How they became friends was no great mystery, but now they remained so, braided together beyond their shared college quarters, this transcended the usual alchemy of optimism and obligation that kept friendships intact, kept people from fading into other categories: old friend, college friend, just someone I once knew. None of the four would ever be just anything to the others...