Luke's ex-girlfriend, Rachel
When exactly did that happen?
In season 1, Rachel appears and Lorelai knew nothing about her. At this point in their relationship, Luke has known Lor for about...3 or 4 years.
Anna dated Luke about 12 years prior to season 6, meaning in s1, April was about 5-6 years old.
It didn't feel like Rachel's relationship with Luke came before his with Anna's and Lorelai didn't know of her until s1, so when did it happen exactly in the timeline?