oh, i love that idea! i really dig the idea of them unknowingly bumping into one another again here in san fran of all places after spending a few days hanging out together a year ago. it gives enough back story while leaving things a bit organic. i could see her opening up about it just a bit without getting too detailed before they parted ways. by now she's in a better place than when they first met, so once they rekindle their friendship she'd probably be more willing to delve further.