The One You Really Want

It sounds like a Grease song, but it's not.

This Chick-lit from Jill Mansell is amazing.

Summary:
When Nancy discovers the expensive jewelry her husband's been buying isn't for her, she decamps from the Scottish countryside to her best friend Carmen's posh Chelsea town house to sort things out.

Nancy finds herself in a surprising new world, where rock stars are nicer than you thought, social workers are not necessarily to be trusted, and the filthy rich are folks with problems just like you. Everybody falls in love with the wrong people, and the path to true love twists and turns before you discover who you really want.