Selena Gomez and Justin Bieber are reportedly dealing with yet another breakup, following their recent trip to France.

HollywoodLife.com reported that the infamously on-and-off couple split over "other girls." "It's one thing for him to be friends with other girls but he was totally crossing the line and putting it right in her face," a source said. "I mean, taking Kendall out for dinner? Come on!"

Last week, Bieber took Jenner out to Ferdi, a restaurant in Paris, for an intimate dinner date, as an Instagram video of them all smiling and drinking champagne emerged online.

"Selena and Justin had a bad fight in Paris. They broke up again," the source confirmed. "She already got most of her stuff out of his house."

In addition to the "Keeping Up with the Kardashians" star, Bieber was apparently flirting with other women at a party: "They were already fighting before the party, then at the party he was hardly paying any attention to her; he was flirting with other girls right in front of her. It was too much."

"Once they start fighting, it goes bad really fast," the source added. "She was supposed to stay with him, but she left as soon as she could. She went straight from the Louis Vuitton show to the airport."

Gomez then took to her Twitter account to seemingly hint at her falling out with her boyfriend in a series of cryptic tweets: "We have to learn the hard way sometimes (deleted)."

It did not end there though, as Gomez also unfollowed the "Baby" crooner via Instagram on Oct. 1. Instead, she started following two other guys -- Tommy Chiabra, the businessman with whom she celebrated her birthday on a yacht, as well as Tanz Watson, a male model with whom she was flirting back in July.

It actually appears that Selena Gomez and Justin Bieber had already gotten into a huge argument even before flying to Paris, as a footage of the pair at the Princess Juliana International Airport in St. Maarten went viral -- which sees the former storming into the airport and throwing her purse on the floor.