William and Apollo have always had a good relationship.
Back when William married Artemis, Apollo, as Artemis's brother, was naturally very pleased.
William also cherished Artemis deeply.
After all, for someone like William, if he really wanted to find a partner of equal strength, he figured he would never be able to marry.
Poseidon was someone William had guided in his youth, teaching him a few things, which loosely made him Poseidon's mentor.
Artemis, a disciple of Poseidon, became William's wife.
Effectively, he married the disciple of his own disciple.
But for William, marrying a girl billions of years his junior didn't bring any sense of wrongdoing.
He had no direct relatives, and the significant age gap in a romantic relationship might seem unacceptable to others, but for him, it was inconsequential.
Therefore, in terms of ethics that some might find questionable, William didn't much care.
