Talk about a Hollywood love triangle. There's a new report indicating that Selena Gomez feels like she has been "stabbed in the back" by her friend Kendall Jenner, all thanks to her relationship with Justin Bieber.

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According to Hollywood Life on Tuesday, Gomez supposedly feels betrayed by the model, who is reportedly dating the chart topper while trying to keep their relationship off the radar.

A source told the site, "Selena has heard that Kendall and Justin are hooking up and feels totally lied to, betrayed and stabbed in the back by Kendall. She doesn't know how long it's been going on, but she's convinced it's actually happening, and feels embarrassed and foolish. She doesn't even consider Kendall a friend anymore."

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There are hot new rumors that Jenner and Bieber might be dating, as fans have even given them a new nickname: "Jendall."

According to the Mirror on Monday, Bieber was apparently "all over" Jenner at the Coachella Music Festival this past weekend and even shared a photo of him caressing the model on his Instagram page.

If that weren't enough, Bieber and Jenner were spotted "whispering in each other's ears" during Beacher's MadHouse Party at the festival. They were also spotted getting up close and personal at both Cody Simpson and FKA Twigs' concerts as well.

Tags: Kendall Jenner Justin Bieber