(Photo by Kevin Mazur/Getty Images for Yeezy Season 3) Though many figured that the decision had to do with Blac Chyna, who's Tyga's ex-girlfriend and Rob Kardashian's fiancé, the source added that it actually had nothing to do with her. The couple, who have been dating since 2014 and went on a brief break around Tyga's 26th birthday last November, arrived separately to the Met Gala a couple of weeks ago, which definitely turned heads.

In addition, Jenner and Tyga left the Balmain after party separately after showing no signs of affection inside the event."They're in a fight at the moment," another source added. Tyga still loves Kylie and thinks this [split] is temporary."See photos of Kylie Jenner through the years: Bruce Jenner with daughters Kendall and Kylie during World Premiere of 'Teacher's Pet' - Red Carpet at El Capitan Theatre in Hollywood, California, United States.

(Photo by Gregg De Guire/Wire Image)LOS ANGELES, CA - DECEMBER 18: Kylie Jenner arrives at the 'Justin Bieber's Believe' World Premiere at Regal Cinemas L. Live on December 18, 2013 in Los Angeles, California.

(Photo by Steve Granitz/Wire Image)LOS ANGELES, CA - FEBRUARY 20: Television personality Kylie Jenner attends the exclusive press preview of Tyga's new store, Last Kings Flagship Store, on February 20, 2014 in Los Angeles, California.

(Photo by Imeh Akpanudosen/Getty Images)GLENDALE, CA - FEBRUARY 22: Kylie Jenner poses during a photocall for her new MADDEN GIRL collection at Nordstrom at The Americana at Brand on February 22, 2014 in Glendale, California.

(Photo by Angela Weiss/Getty Images)LAS VEGAS, NV - MAY 18: Model Kylie Jenner attends the 2014 Billboard Music Awards at the MGM Grand Garden Arena on May 18, 2014 in Las Vegas, Nevada.

(Photo by Bennett Raglin/Wire Image)NEW YORK, NY - FEBRUARY 13: Tyga and Kylie Jenner are seen outside the Alexander Wang show during New York Fashion Week: Women's Fall/Winter 2016 on February 13, 2016 in New York City.

(Photo by Daniel Zuchnik/Getty Images)NEW YORK, NY - FEBRUARY 13: Singer Beth Ditto, music artist Tyga, TV personality Kylie Jenner, actress Taraji P.

Following Thursday's news that Kylie Jenner and her rapper boyfriend, Tyga, decided to break up, new information is coming out from sources close to the Kardashian-Jenner camp about why the couple decided to call it quits after almost two years together.

SEE ALSO: Katy Perry calls the Orlando Bloom and Selena Gomez rumors a 'dumb conspiracy'"It was a long time coming," a source told E! See photos of Kylie Jenner and Tyga together: LOS ANGELES, CA - NOVEMBER 22: (L-R) Rapper Tyga, Model Kendall Jenner and TV personality Kylie Jenner attend the 2015 American Music Awards at Microsoft Theater on November 22, 2015 in Los Angeles, California.

(Photo by Gregg De Guire/Wire Image)LOS ANGELES, CA - NOVEMBER 18: TV personality Kylie Jenner arrives at the Los Angeles premiere of 'The Hunger Games: Catching Fire' at Nokia Theatre L. Live on November 18, 2013 in Los Angeles, California.

(Photo by Steve Granitz/Wire Image)LOS ANGELES, CA - NOVEMBER 24: TV personalities Kendall Jenner and Kylie Jenner arrive at the 2013 American Music Awards at Nokia Theatre L. Live on November 24, 2013 in Los Angeles, California.

(Photo by Lee Celano/Wire Image for Hollywood Reporter)IRVINE, CA - MAY 10: TV personalities Kendall Jenner and Kylie Jenner arrive at the KIIS-FM's 2008 Wango Tango concert held at the Verizon Wireless Amphitheater on May 10, 2008 in Irvine, California.