Fans often look back at this episode as the true beginning of the "Emily Era," which set the stage for one of the show's most famous cliffhangers at the end of Season 4. Baxendale hi-res stock photography and images - Alamy

Following his painful breakup with Kathy, Chandler is struggling to move on. To help him out, Joey and Ross guide him through the "three phases" of a breakup: Staying in sweatpants and moping.

Meanwhile, Rachel is desperate to impress her new crush at Bloomingdale's, Joshua. To clear her schedule for him, she convinces Ross to take her boss’s niece, , to the opera. Although Ross is initially reluctant, he and Emily hit it off immediately, marking the beginning of a whirlwind romance that eventually leads them to London. Chandler’s Post-Breakup Recovery