Lone Dragon King's Substitute Fairy

No one would have imagined that Darius would risk his life for the ordinary girl, and even lose more...
But he gained her. Enough. That is all he wanted.
Mystica comes from the royal family called Leone Clan. It was known as the most outstanding clan among fairies' who ruled the Sylph kingdom for centuries.
Before she lost her memories, she was declared to sit on her mother's throne and take over the leadership of their clan to continue their legacy and carry the responsibilities to take care of all the creatures that belong to Sylph kingdom be it on the inside or from the outside.
Darius, who was born from the most renowned clan of dragons, is known as the highest and superior type among royal bloodlines.
Wherever he goes, a lot of female dragons would always there surround him, luring him to sleep with them. Be it at their Cage Empire or the Midnight Escape Club exclusively for royal-blooded dragons, aroused smells from drakainas always lingered around him but he wasn't interested. Not even an ounce of arousal he felt inside.
When it comes to finding their fated mates, dragons are the most sensitive creature in the Mystical Realm. A single night of desire meant forever to them. It wasn't called a hopeless romantic but called unfairness. Unlike werewolves, they couldn't reject the very first person that they slept with for the very first time because the dragon's mark would naturally appear after having a steamy session be it a drakaina or different types of shifters. In this case, choices are not negotiable rather the traditional union has to be made after that therefore, he always shows his aloofness and indifference towards any female creatures and the woman in front of him was no exception...
Is that true?