I got my first girlfriend on June 26, 1999, and she cost me $112. She's been one of my few faithful companions over the years. And I've only made three changes in all this time.
First, I started calling her Sophia. I scalloped her fretboard about 8 years ago, then gave her knobs in the form of black dice with white pips.
I've since amassed a small collection of other guitars, but I'll always have a special place in my heart for that black Epiphone Les Paul Junior with the single dogeared P-90.
Unless you were restricting us to actual human girlfriends, in which case I've never had one.