• Pippa Middleton watches the men's singles tennis final between Jo-Wilfried Tsonga of France and Roger Federer of Switzerland at the ATP World Tour Finals at the O2 Arena in London November 27, 2011.

Pippa Middleton watches the men's singles tennis final between Jo-Wilfried Tsonga of France and Roger Federer of Switzerland at the ATP World Tour Finals at the O2 Arena in London November 27, 2011. (Photo : REUTERS/TOBY MELVILLE)

Pippa Middleton was reportedly seen having lunch with her ex-boyfriend Alex Loudon on Sept 22.

This comes after Middleton and her boyfriend Nico Jackson were seen together sharing a sweet cuddle together at Violet Hill studios in North London. The exes were reportedly seen enjoying lunch together in Fulham, reported Daily Mail. 

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They called it quits in 2011 for unknown reasons after three years of dating.  The former England cricketer reportedly did not like the spotlight he was getting due to Middleton's popularity.

"The plain truth is Alex adored Pippa but he couldn't stand the circus that now surrounds her. Nothing is straightforward anymore," a common friend previously told Daily Mail.

This isn't however the first time that she was seen hanging out with her former beaus. In May 2015, she was spotted with ex-boyfriend James Matthews, strolling together happily around Soho, London. There were also reports that she and her royal family stayed at James's family resort in Saint Barthélemy islands, reported Royal Fans.

Meanwhile, Middleton, who is a fitness freak, completed a grueling 46-mile Otillo swin run championship in Sweden. She has also previously participated in Tusk Safari marathon.  She has been known to keep her body fit and she recently flaunted her figure at the annual Boodles Boxing Ball event hosted by celebrity chef Gordon Ramsey.  

Earlier, Prince Harry, Prince William and Kate Middleton have graced the occasion. Middleton wore a blue gown for the event; however, her Jackson was absent from the event.