S4の1話のカットされたシーン(dvdにAdditional scene収録)で一応触れてるw
4.01 - Deleted Scene - 1:55
https://crazy-internet-people.com/site/gilmoregirls/pages/s4/s4s/66ds.html
RORY: Okay let’s talk about something else, how is Dave doing?
LANE: Gone, you’re not very good at this cheering up thing.
RORY: Off to college already.
LANE: He left last week, but we’re gonna try the long distance romance thing,
you know he’s gonna be home at Thanksgiving and Christmas
plus we’re working on a plan to get me out California.
RORY: Really.
LANE: Yes it’s complicated, NATO was involved.