Cold

When Jack finds a sick and cold Mark freezing to death in the snow, he brings home the scarlet haired man.
Mark tells him that he doesn't have anywhere to stay anymore. He ran away.
As they get to know each other as Mark begins to heal, they realize that they have some of the same friends and same interests.
But what is Mark running from? Or perhaps the what is a who...

This story was adopted from @MattyWantsToBattle . Thank you for allowing me to continue your wonderful story.