As Pippa Middleton enjoys break with old flame – is it acceptable to holiday with an ex?

As Pippa Middleton enjoys break with old flame – is it acceptable to holiday with an ex?

As Pippa enjoys minibreak with an old flame – just when DID it become acceptable to holiday with an ex
With everyone from Bruce and Demi to Jude and Sadie still spending quality time together, we ask what it is that bind former couples so long after the relationship has ended…

4:42 PM on 27th May 2011

Hitting the town: Pippa Middleton and former boyfriend George Percy have a night out in Madrid where they partied away the small hours till 4am

Still friends: Pippa Middleton and rumoured old flame George Percy on a minibreak in Madrid last month

Family fun: Jude Law and ex-wife Sadie Frost pose with a castmember from Blue Man Group and their three children Rafferty, Iris and Rudy at the Venetian Hotel in Las Vegas

Happy families: Jude Law and ex-wife Sadie Frost in Vegas with a cast member from the Blue Man Group and their children Rafferty, Iris and Rudy

Compliments: Bruce Willis in 2008 with now wife Emma Hemming (left), daughter Tallulah Belle Willis and her mother and his ex-wife Demi Moore

Compliments: Bruce Willis in 2008 with now wife Emma Hemming (left), daughter Tallulah Belle Willis and her mother and his ex-wife Demi Moore

Hitting the slopes: Sarah Ferguson, left, Prince Andrew and daughter Beatrice, right, are in the exclusive resort of Verbier

Hitting the slopes: Sarah Ferguson, left, Prince Andrew and daughter Beatrice, right, ski together in the exclusive resort of Verbier

Surviving as friends: Arianna Huffington went on holiday with the man she had divorced 12 years earlier

Surviving as friends: Arianna Huffington went on holiday with the man she had divorced 12 years earlier

Liz Hurley Hugh Grant

Ubiquitous presence: Elizabeth Hurley with her now estranged husband Arun Nayar in St Tropez in 2008, and her ex-partner Hugh Grant on the same trip

99 - Actress Elizabeth Hurley and her boyfiend actor Hugh GrantDemi Moore and husband Bruce Willis

Relationships for life: Liz and Hugh when they were still together in 1999 (left) and Bruce and Demi at the Emmy Awards in 1997