After losing at Nationals, they eventually get back together.
In most of Season Three, they do not experience many significant problems, besides getting to know each other better in order to get used to each other.
Because of this, Finn lies to Rachel and tells her that they are about to get married.
However, Finn stops at the train station so Rachel can go to New York. " They share one last kiss before Finn 'sets Rachel free' at the end of Season Three.
Rachel is hesitant to go because she is in love with Finn, but he tells her "We are just going to sit here and let go. In Season Four, Rachel constantly misses Finn but when she goes through a "makeover" she changes her thoughts and ways she views things and kisses Brody, not long before Finn arrives in New York.
Their wedding is cancelled when they receive the news about Quinn getting in a car accident while on her way to the wedding. Pillsbury and Rachel, Finn struggles to find his calling outside of Lima. Schuester, he soon realizes that he wants to be an actor and wants to go to New York with Rachel.
Rachel finds out that Finn slept with Santana in The Power of Madonna, while Rachel was with Jesse; therefore, Rachel retaliates by making out with Puck.
Once again, their relationship is rekindled for a third time when Finn kisses Rachel in New York.