In my experience watching Gilmore Girls for many years, I've noticed that the love-interests/storylines come three at a time! Check out the following Gilmore Threes!

---Rory's Relationships---
1. Dean
2. Jess
3. Logan

---Lorelai's Engagments/Weddings---
1. Max
2. Luke
3. Christopher

---Luke's Relationships---
1. Rachel
2. Nicole
3. Lorelai

---Lane's Relationships---
1. Henry
2. Dave
3. Zach

---Lorelai Hooks up with Christopher---
1. Season 1, "Christopher Returns"
2. Season 2, "I Can't Get Started"
3. Season 6, "Partings"

---Graduations---
1. Lorelai- Business School
2. Rory- Chilton
3. Rory- Yale

---Sookie's Pregnancies---
1. Season 3-4
2. Season 5
3. Season 7

---Rory's Birthday Parties---
1. 16- Hartford
2. 16- Stars Hollow
3. 21

---Hospital Appearences---
1. Richard
2. Sookie
3. Logan

---Stars Hollow Funerals---
1. Uncle Louie
2. Old Man Twickham
3. Fran

---Characters Singing---
1. Rory at Sherry's baby shower
2. Emily and Richard at Rory's Grad party
3. Lorelai's serenade.

--Rory Travels to Europe---
1. After graduation with Lorelai
2. With emily in Season 5
3. With Logan for christmas


Can you think of Any more? post your Gilmore threes in a comment!