Ferdinand had lived alone for thousands of years. Growing up from a small dragon to a huge one took some time. But he was able to do it. Until he was able to take human form and master more forms of magic.
When the population of all creations grew, even his island was not spared by the curiosity of other races. He began encountering more people. And there were those who followed him around.
But all of them left his side one day. They got married, had children, aged, had grandchildren, and one day died.
That was the cycle of life he had kept witnessing. Everyone he came to know eventually died before him.
So, when his creator came to him one day asking him to get a mate and have children just like everyone he had watched, it made him wonder: What was the use?
Even if he did get a mate and had children, would they not die before he does just like all the others?
Wouldn't their lives fade away right before his very eyes?
And yet, he would remain living as healthy as ever?