Here's how it goes:
* The Setting: Rachel and Ross are discussing their feelings for each other, having recently found out about their prom night kiss and rekindled their connection.
* The Lobster Analogy: Ross brings up the concept of lobsters, stating that they mate for life and that they're very loyal to each other. He then says, "It's like we were meant to be together."
* The Connection: Rachel, taken by the romanticism of the analogy, agrees with Ross. From this point forward, they become known as "lobsters" throughout the series.
This scene establishes their deep connection and their belief that they are meant to be together, even though their relationship is rocky and complicated. It highlights the unique, enduring bond they share, much like the way lobsters are said to pair for life.