Pippa Middleton making her man jealous?

Pippa Middleton‘s love life is on the rocks because of her jealous boyfriend sources say.

The sexy sister of Kate Middleton has apparently riled stockbroker Alex Loudon by becoming an international sex symbol.

“They’ve been dating less than a year and already talking marriage Alex actually proposed months ago. But Pippa told him they should hold off because an engagement would steal Kate’s limelight,” a source said.

“Alex agreed, but jealousy boiled right after the royal wedding when he and Pippa partied at the boozy, all-night postnup bash.

“Alex was furious because he felt Prince Harry overstepped his brother-in-law boundaries and flirted outrageously with Pippa.

“He confronted her about it the next day, but she just laughed it off. Now Alex is saying: ‘Enough is enough!’ He wants the world to know Pippa’s taken.