Friends Season 6 Episode 2 : The One Where Ross Hugs Rachel
Monica and Chandler tell Rachel and Joey that they're moving in together. Joey takes the news that Chandler is moving out badly, and Chandler reassures him that their friendship won't be affected. On the other hand Rachel takes the news well... but only because she doesn't realize that if Chandler is moving in she will have to move out. Eventually when Monica tells the truth of the situation Rachel is distraught and seeks comfort from Ross. Phoebe meanwhile thinks Ross still loves Rachel due to the fact he didn't get the annulment, and her belief is strengthened when he hugs Rachel in an attempt to comfort her and because he smells her hair.