Selena Gomez, Justin Bieber Relationship Trouble? New 'Oprah's Next Chapter' Interview (PREVIEW VIDEO)

 Justin Bieber and Selena Gomez have been dating  for over a year and the "Beauty and a Beat" singer never fails to stop gushing about his first love.

Bieber sat down with Oprah Winfrey for an upcoming episode of "Oprah's Next Chapter."

In the preview video, Bieber discussed why he and the former Disney star remain so close. 

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"I never make [Selena] separate from me because I don't want her to ever feel like I'm ashamed of her. Because I feel like a lot of guys do that, especially in the business," he said. "They don't want to be seen with the girl, so they'll make them ride in separate cars. They'll do that 'get away' stuff. [Selena and I] get away where ... you know ... getting away together,"

Although the teen couple look happy together in the spotlight, according to a new report, they are always on the verge of breaking up because "jealousy is killing the relationship."

A source revealed that Gomez has jealous tendencies over Bieber's female friends.

"Selena can be so dramatic about Justin's exes, who aren't even in her league! They both engage in really petty arguments and it's killing their relationship," the source said.   

An insider told Radar Online that the stars argue over jealousy: Gomez is Bieber's first love so the couple remain together because "he can't even imagine being without her."

"Selena and Justin's relationship isn't the fairytale romance they'd like their fans to believe it is," a friend of the couple shared. "Justin's heart is with Selena because she's his first true love."

The insider added that Gomez sticking it out with Bieber is a calculated move - she is with him because he is "good for her brand."

"Dating Justin is good for Selena's brand. Together they're a brand!" the source explained. "Everyone in Selena's camp is aware of Justin's star power and is urging her to make it work with him." 

Watch the preview video where Bieber discusses his happiness with Gomez in an interview with Oprah Winfrey for "Oprah's Next Chapter."

The full episode will air on the OWN network on Nov. 25.