S01–S03
Dean Forester — safe, tall, built her a car. First kiss: S01E07.
S02–S03, S06
Jess Mariano — reader, matched her speed. Returns S06 as author.
S05–S07, AYITL
Logan Huntzberger — privilege, media dynasty, the affair that never ended.
S04E22
Sleeps with married Dean — first major moral collapse.
S05E21
Steals yacht "Birkin" — Mitchum says she doesn't have "it."
S05E22
Drops out of Yale — moves into grandparents' pool house.
S06E09
Returns to Yale — rebuilds relationship with Lorelai.
AYITL
Affair with engaged Logan — the cycle repeats.