<Li> Julie . An old graduate school colleague, portrayed by Lauren Tom . She first appears in the final scene of the season 1 finale, returning with Ross from an archeological dig in China . They start dating in season 2 but break up after Ross discovers Rachel's feelings for him and he decides he wants to be with her instead . </Li> <Li> Bonnie . A love interest (played by Christine Taylor) introduced to Ross by Phoebe, Bonnie is formerly a militant bald woman who no longer shaves her head . She enjoyed a sex - filled relationship with Ross, until a conniving Rachel broke them up by first setting Bonnie up to shave her head again, and later by revealing she was interested in reuniting with Ross . </Li> <Li> Mona . A love interest he met at a wedding (portrayed by Bonnie Somerville), who later broke up with him when she found out that his roommate, Rachel Green, was pregnant with Ross's child . Ross becomes paranoid after Mona proposes to send out Christmas cards together, and in a panic desides to give her a key to his apartment . It is later revealed that Mona is unable to say "I love you" yet, and delivers what the female friends refer to as "an emotional slap in the face" with "I love spending time with you". </Li> <Li> Chloe . Ross's only relationship with Chloe (referred to in a few prior episodes as "The cute girl from the copy place with the belly button ring") was a one - night stand during a "break" with his relationship with Rachel, which interferes with their attempt to get back together . Although only covered over two episodes in season 3, Ross' fling with Chloe would be the basis of the "We were on a break!" running joke that would last until the very end of the series . </Li>

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