Season three took on a significantly greater serialized format. Rachel begins working at Bloomingdales and Ross becomes jealous of her coworker, Mark. Ross and Rachel temporarily break up but this becomes permanent after Ross sleeps with the hot girl from the copy shop, Chloe. His insistence that he and Rachel were "on a break" becomes a groan enducing gag through the remaining seasons. The two show significant animosity towards each other through the second half of the season, though the cliffhanger ending suggests the two reconcile. Interestingly, the first episode after they break up does not focus on the two of them, but on Chandler, who's having a very hard time dealing with the situation, as it reminds him of his parents' divorce. Phoebe, established as having no family except for an identical twin sister, becomes acquainted with her half-brother (played by Giovani Ribisi) and in the finale discovers her birth mother she never knew she had (played by Teri Garr). Joey develops a crush on Kate, his acting partner in a new play (played by Dina Meyer). At first, she doesn't harbor feelings for him, even after sleeping together. However, after her boyfriend/director dumps her following a scathing review of the play, she turns to Joey for support. The relationship doesn't last long, as she is given an opportunity on a soap opera in Los Angeles. Monica begins a relationship with Pete Becker, a millionaire who has a crush on her (played by Jon Favreau). At first, she only sees him as a friend, but eventually, the two begin to date. Preparing for what she thinks is a marriage proposal, Pete confides in her that he wants to become the Ultimate Fighting Champion. After seeing him get beat up badly in two matches, she tells him he has to give it up. Since he won't, she breaks up with him.   Wikipedia