this is a little more cynical sounding then I typically am, I must preface this with a few words.
This is only applicable to particular circumstances, certainly not to life or to true love. Specifically, it speaks to those small nagging problems that never seem to go away. These problems are particularly important to step back and assess from a safe distance, only then you can deem wether they are worth you time and energy.
More often then not, they're not.