[blam]

"I had always thought it was a cool song about an old/young romance"

I did and still do think it was/is a song about her early encounter (in high school, Atherton High) with Lindsey Buckingham.

BTW, if these two people (especially Lindsey) hadn't joined Fleetwood Mac...FWM would just be a small foot note in RR history today.
FWM went after Lindsey and were told that Lindsey and Stevie were a 'package/couple', both or none.

[dsc]

“Buckingham Nicks”

I’ve been looking all over for that CD.