How many loves do you get in a lifetime? And are Magnolia and BJ each other's one and only?

It's been nearly a year since everything happened between Magnolia Parks and BJ Ballentine on the steps of the Mandarin Oriental, and since then it seems like everything has changed.

Magnolia has a life in New York now and BJ appears to have finally let go and moved on.

But when they both wind up back in London and are thrust together once again, they find themselves asking their age-old question: How many loves do you actually get in a lifetime, and, most important-are they each other's?