[No spoilers] Is there a particular reason why Daeron I Targaryen never married?

Short though the "Young Dargon's" reign was, Aegon II's was shorter, and Visery II's shorter yet, and they both married.

I am merely curious as to if a reason is ever provided.

Short though the "Young Dargon's" reign was, Aegon II's was shorter, and Visery II's shorter yet, and they both married.

I am merely curious as to if a reason is ever provided.