What to get the love of your life — for husband and wife.

Pippa Middleton has a lot on her plate these days: Coming up with $1.5 million worth of party planning tips for her forthcoming book, being photographed daily by the British paparazzi, and, of course, being related to the future queen of England, her sister, the Duchess of Cambridge.

So, is it any wonder, that the 27-year-old socialite has let her relationship with longtime boyfriend, 31-year-old Alex Loudon, slide down the drain?

According to the Sun, the couple broke up again last week, after a "string of rows" put strain on their relationship. So, what did Pippa do? She retreated to the Scottish,longchamp boutique, countryside estate of the royal family to console herself. 

"Pippa tried to get over the split by spending last weekend with Wills and Kate at Balmoral. She and Alex split briefly in the summer — but this time it's over. They are barely speaking," says a source. Pippa Middleton Splits From Alex Loudon, Steps Out With Ex

When Pippa and Alex briefly called it quits last summer, it was rumored that Pippa might have been interested in getting back with her ex,sac vintage longchamp, George Percy, who, oh yeah, just happens to be a duke. 

However, our own Kali Lamparelli has her own theories for why these two didn't last:

1. Fame. I think the royal wedding became the downfall of Pippa and Alex. Fame can be difficult for many couples to handle, and according to the DailyMail, Alex "found it difficult to deal with Pippa's sudden fame as a sex symbol." Well hello! She's gorgeous, who wouldn't want to photograph her?

2. Trust. As Elizabeth wrote, when the duo split briefly this summer, Pippa visited her ex, George, in Madrid. How can Alex trust that there isn't still some unfinished business between them? We wonder if the duke is excited she's back on the market! Will Prince Harry Get In The Way Of Pippa Middleton's Engagement?

3. Fighting. We all know arguments can be rewarding for the growth of relationships, but Alex and Pippa have been arguing a lot lately. One fight even "erupted at an acquaintance's wedding," a source tells the Daily Mail. Not cool! It's obvious that Pippa wants more than Alex can give her—his pal told Us Weekly in June, "Pippa wants to travel and work abroad." She doesn't want a boring banker who works long hours.

Now that Pippa is single, Prince Harry should fly back from Arizona before she gets scooped up by someone else! How perfect would that be?

Tell us: who do you think Pippa should date next?

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