So, Ross and Rachel's relationship was finally ready to take off after all their struggles, almosts, and what-ifs, and the pair was together for a good long while on "Friends." They dated, they got intimate, went to weddings and events together, and became a full-fledged, totally in-love couple. Then, Rachel quit her job at the coffee house to pursue fashion, and when she lands a job at Bloomingdales due to a kind stranger she meets at a restaurant, Mark, Ross starts to get pretty jealous. Not only is Ross jealous of Mark in general, but as Rachel's job becomes more demanding, he gets jealous of that as well.

This obviously doesn't sit well with Rachel, who worked very hard to build her career from the ground-up and wants nothing more than to be respected and successful. So, Ross and Rachel started fighting and bickering a lot more over time, and in "The One Where Ross and Rachel Take a Break," it eventually escalated into a big fight in which they decided to take a break. Obviously, that break would go on to mean different things to both of them, but it's clear they weren't seeing eye to eye for a while.