They get back together the next year after Quinn cheats on Sam Evans, whom she was initially dating, with Finn himself.
They break up again in Funeral due to Finn feeling like he still wasn't able to fix everything from the previous year and feeling "tethered" to Rachel. Quinn was Finn's first girlfriend and he was Quinn's first boyfriend.
It featured some amazing flashback moments, including an incredible tribute to Cory Monteith and the pilot episode.
WATCH: Lea Michele‘s final performance ever on Glee The second hour starts with us finding out if the New Directions win at the 2015 National Show Choir Championships.
Finn is interested in Rachel in some episodes, but she is with another guy.
Throughout the hour we learn the fate of all the main characters and are treated to a bunch of great musical numbers.
-Mercedes goes on tour as Beyonce’s opening act and doesn’t get back together with Sam -Sam becomes the new director of the New Directions -Mc Kinley High becomes a performing arts high school and Will is named principal FIVE YEARS LATER -Rachel wins a Tony Award and is married to Jesse St. and Rachel is their surrogate -Tina and Artie are back together -Sue is the Vice President of the United States, serving under President Jeb Bush -The Mc Kinley High theater is renamed to the Finn Hudson Auditorium The first hour of the episode is a look back at the characters in 2009 before the New Directions started.
Quinn lied to Finn about the paternity of the pregnancy and claimed the baby was his, citing the time Finn prematurely ejaculated in Quinn's hot tub.
Under the false belief that Quinn was carrying his child, Finn opted to stay with her and attempted to become a good father.
The show is most likely doing this to keep the audience on the edge of their seats. Finn is then with someone, when Rachel is interested.