Trouble in paradise!

Although their relationship seemed to be recently thriving on the Met Gala red carpet, it was a different story for Gigi Hadid and Zayn Malik behind the scenes.

A source close to the couple exclusively tells Life & Style that the two are constantly fighting because “Gigi keeps catching Zayn talking to his ex-fiancée, U.K. singer, Perrie Edwards.”

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Zayn Malik and Perrie Edwards.

To make matters worse, the singer arrived several hours late to the 21-year-old’s birthday party in LA because the pair “had a blowout fight about his ex that ruined [Gigi’s] big night,” the source says.

“He’s just not sure he can fully commit to her,” the source continues, adding that they’re “definitely on the rocks.”

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We’ll just have to wait and see how this one plays out, but we’re hoping they could get past their relationship troubles.

For more on Gigi Hadid and Zayn Malik pick up the latest issue of Life & Style, on newsstands now!