In the past few years I've been abandoned by very close friends six times.  Three of which have happened in the past few months. Granted one of those friends killed himself rather than walked out on me, but I still consider that abandonment--just in the permanent sense.
 
I'm done letting people get close to me.  I've tried this and all I get is hurt.  I am closing the door to my Inner Circle and locking it tight.  No one else will get in.  Hopefully no one else will leave.  It's becoming a very lonely place on the Inside.  My pain will eventually go away.  Hopefully my newfound guardedness will stick around and I'll be able to prevent more pain in the future.  I'm not a masochist.  I'm not into hurting like this.  And I've had about enough of it.