BF and I *never* call each other by our real names. He calls me Scrappy, and any one of a million nicknames--he called me "Death Star" last night. I usually call him Monster or Handsome.
This is GF and me. We mostly call each other "Honey." She also occasionally calls me "Og," which is my horrible ogre name, for when I am being a horrible ogre. I occasionally call her her "harridan," when she's giving me a hard time about something, or running off at the mouth while I'm reading or watching TV.