They have had their fair share of 'stormy weather' [=they have had many problems] in their marriage.
They are 'fair-weather' friends. [=they are friends when you are successful but not when you fail]
They had to 'weather' [='get through'] some difficult times in the early years of their marriage.
(..) So Now what? Now what? Now what?! Oooh! What am I gonna do? She threw me out. I can't go back to. Arendelle with the weather like this. And then there's your ice business... Hey, hey, don't worry about my ice business... Worry about your hair? What? Just fell off a Cliff. You should see your hair. (..)2013 Frozen
(..) Be prepared for anything, And should you encounter the Queen, You are to put an end to this winter. Do you understand? So how exactly are you planning to stop this weather? Oh, I am gonna talk to my sister. That's your plan? My ice business is riding on you talking to your sister. Yup. (..)2013 Frozen