Poor Kendall Jenner just can't catch a break in the love department.

Her boyfriend, former One Direction singer Harry Styles, was caught spending the night with another woman at his apartment, throwing their relationship into a tailspin, The Sun reports.

Kendall, 20, and Harry, 21, set off rumors of a romance after they were seen getting very close on a Caribbean boat trip over New Year's.

kendall & harry on new year's 2015 splash

Kendall Jenner and Harry Styles on a boat over New Year's weekend.

But now, Harry may have had a fling at his place with fashion stylist Pandora Lennard, 27. Lennard was spotted leaving his swanky pad in North London last Sunday just before noon after arriving there late Saturday night, the Sun reports.

pandora lennard getty

Pandora Lennard

The paper snapped a pic of her standing outside Styles' apartment checking her phone and apparently waiting for a taxi.

Harry and Kendall had been committed to making their long-distance relationship work (he lives in London, she lives in L.A.), reportedly having two-hour Skype sessions and texting throughout the day.

harry styles kendall jenner

Harry Styles with Kendall Jenner and Cara Delevingne.

Styles seemed so smitten with the Kardashian sister he even was thinking about getting a tattoo with her name on it.

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Let's hope nothing fishy is going on with Harry and Pandora and he doesn't break Kendall's heart!