Goddes of flame and rage what turned her heart so bitter... Story in description

Long ago the two opposing elements were once interchangeable, when you wanted heat, cold would be there and when you needed the cold, heat would be there. They where always together, a perfect temperature. One day they started challenging eachother for the colder or hotter temperature. They couldn't stand eachother and agreed over a territory, if one lost they would get the outskirts of the earth the top and bottom and the winner would get the middle and center. They morphed into human forms to meet again after training. But despite what everyone believed they fell in love for a century. They created "warm" but arguing started again and cold left hot, she had a bad temper and scorched forests into deserts, and banished their child Warmth to live inbetween them. Now warm wanders inbetween Cold and Hot.