Julie is attracted to Russ as soon as she sees him, and when she speaks to him, they begin a relationship.
Rachel briefly regrets leaving Tag but shrugs it off.
In season eight, after Rachel is revealed to be pregnant, Phoebe recognizes a red sweater that the father of Rachel's baby wore and thought it was Tag's.
Rachel then invites Joshua to a fake party at Monica and Rachel's apartment with the friends where Rachel wears her High school cheerleading outfit, which leads Joshua to fall for her.
The two finally date, but break up after Rachel hastily proposes to Joshua after 4 dates in "The One With All The Wedding Dresses".
In season two, after Rachel finds out Ross is dating Julie, heartbroken and drunk, she has a one night stand with Paolo, but it doesn't amount to anything further than that.