Travelling with love (Stingue)

So let's make this description quick but helpful so let us begin!
Rogue has run away and at the train station he meets Sting.
Sting has been on the run for 4 years and of course the two connect and Sting agrees to taking Rogue along with him so the two set off on their agreed journey to visit every country on their list.
So of course as you can probably guess the two develop feelings for each other.
How will their journey turn out?