You often hear or read this sentence in romantic films or novels. It means that 2 people are so suited to each other in every way that they should stay a couple forever.

simple it means that both of you are destined to be one soul and one body. cowboy...

It means you two should be together ever forever,nomatter if you are couple or just into each other.

I think your answer is okay. And Jura did it great, as always. Check this site to read more about, and practice English. :) http://ezinearticles.com/?Are-We-Meant-to-Be-Together?---Quiz&id=1959545