Lorelai

When Lorelai comes home, Rory shares that she lost her virginity to Dean, and Lorelai can't understand why her daughter would make that choice considering the fact that Dean is married to Lindsey (Arielle Kebbel).

Emily was mad at Lorelai for her behavior at Richard's funeral, and Lorelai was still struggling with whether her parents really loved and supported her.

When Lorelai ultimately tells Emily the truth, you might anticipate Emily blaming Lorelai or having a poor reaction.

For all of her childish behavior, Lorelai is miles ahead of Christopher in terms of maturity, and he’s never willing to own up to any of his mistakes or step up to the plate when Lorelai and Rory need him to.

The first conflict between Rory and Lorelai, all the way back in the pilot, was about Rory’s first instinct to throw her life away for attention from Dean, and Lorelai points out the similarities between Rory and her younger self right off the bat.

When Paul shows up at Lorelai’s place to join her, Luke, and Rory for dinner, Lorelai and Luke both have no memory of ever meeting him before, even though they’ve clearly spent time together.

Although most people assume the titular Gilmore Girls are Lorelai and Rory, there's a third Gilmore Girl who is just as crucial to the show as the mother-daughter duo.

As Luke is focused on getting joint custody of his daughter, April, Lorelai steps in to help and writes him a beautiful recommendation letter.

By this point, Luke had come to realize his feelings for Lorelai, but she was just coming off of her relationship with Jason () thus complicating things all the more.

He loves Lorelai enough to give her everything she'd ever dreamed of.

Her mother was just as culpable, with Lorelai having a whole bit later in the show when she comes home from a shopping trip with another woman’s bag.

Lorelai’s sharp wit and kind kookiness are truly at their peak in this season, as is Rory’s shy and bookish nature.

Luke knew after one conversation with Lorelai that she didn't want to move out of her house and dropped the idea of house-hunting.

Moreover, "Last Week Fights, This Week Tights" is a milestone in their relationship, as Luke finally grows a pair and asks Lorelai out after four whole seasons.

Plus, it gave us Luke waltzing with Lorelai, and for that, it edges out Lane and Zack’s rockin’ reception.

The cracks in Lorelai's marriage to Christopher begin to show.

This brought a huge shift in Lorelai and Christopher's relationship and made them second-guess their union.

While "Gilmore Girls" follows the lives of mother-daughter-duo Lorelai (Lauren Graham) and Rory Gilmore (Alexis Bledel), it's the town of Stars Hollow, Connecticut that brings so much heart to the show.

Will her book about her adventures with Lorelai pay off?

Richard was the husband to Emily, father to Lorelai, and grandfather to Rory.