Niall Must Be Heartbroken! Demi Lovato Has 'Reunited With Ex Wilmer Valderrama'

WENN

If you're reading this Niall Horan, best look away now! Apparently Niall's flirty buddy, Demi Lovato has reunited with her on/off boyfriend Wilmer Valderrama.

The 'X Factor USA' judge has reportedly got back together with actor Wilmer, who she's been dating on and off since 2010.

According to the New York Post, Wilmer joined Demi ata private event in West Hollywood this week to celebrate the premiere of 'The X Factor'. Onlookers report that the pair were looking cosy at the launch with a eyewitness saying:

"Wilmer stayed by Demi's side all night,"

"He was very protective of her and had his legs straddled around her chair while they watched the show."

The couple were also spotted enjoying dinner together earlier this month. It's not the first time the couple have reconciled. After initially getting together 2010, they split before getting back together for a brief period in 2011 after Demi was released from a treatment centre for an eating disorder and self-injury.

Wilmer is a bit of a serial celeb dater having previously hooked up with Lindsay Lohan and Ashlee Simpson.

Niall Horan might not be too devastated though as just this week he attempted to play down his flirty relationship with Demi. The One Direction star insisted that he and the X Factor USA judge are just "really good friends".

Admitting to the Mirror that the band's travelling puts a dampener on him finding romance, Niall revealed: "Travelling around the world and all the promo that we do - it doesn't leave time for a girlfrien! d. It re ally doesn't. Demi is really cool and we're really good friends."

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