Kershin the Fire mage by Stephen J Wolf

How do you control a power you hate? Kershin's attempts at a normal life have always been fruitless, but now he's sure he'll be cursed forever. After shunning his fire magic for years, he's now forced to either tame it himself or be tamed by a persistent mage hunter. The harder he tries, the worse the situation gets, and as he's hunted across the land, he leaves destruction in his wake. Hessia has been scarred by a fire mage before, but she's determined to never be helpless again. On her mission to tame the destructive fire mage, she faces trials that shake her to her core. Trials that test her mettle, threaten her beliefs, and decimate the villages she's trying to protect. Will she fall prey to her own hunt? The fire takes. The fire consumes. The fire kills. These two know that very well. As they clash, they discover that the threats they face may be greater than either of them imagined.