Friends may not have ever become the cultural phenomenon it was without the increasingly complex and hugely popular love story between Ross Geller and Rachel Green. To celebrate the ups and downs of this rocky relationship, here are some of the best and worst Ross and Rachel moments.

Although Ross tells Rachel about his feelings for her in the pilot, it takes a long time for either of them to finally grab that proverbial "spoon." But all the ups-and-downs of their early days are worth it for the scene in which the two realize they really are each other's "lobsters."

Thanks to an unearthed video from prom in season two, Rachel discovers the hidden truth about the night that her date, Chip, showed up late to pick her up. If she'd paid attention to what Ross was up to back then, however, she might've seen this happen.

That gesture didn't pay off at the time, but once Rachel sees his hurt and embarrassment on tape, she more than makes it up to him.

The moment is near-perfect, finally bringing forth their long-awaited romance with just the right note of sincerity.

Watch the video for more Ross And Rachel Moments Friends Fans Either Love Or Hate!

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Best: The prom tape | 0:15

Worst: The break | 1:01

Best: Mrs. Ross and Mr. Rachel | 2:17

Worst: The long letter | 3:39

Worst: Mannyphobia | 4:41

Best: She got off the plane | 5:43