What's An Alpha To Do? BxB (Omegaverse)

Dominic Silverlock is the future Alpha of the Crimson Fang Wolf Pack. What is a wolf to do when on his 16th birthday he finds his mate. What is a wolf to do when that mate is only 5?
He looks straight at his mates mother and says, "He is my mate, and I hope you will allow me to be there for him. As is customary when a mate is found this early, I will be whatever he needs. A roll model, protector, champion, friend, confidant, supporter, a teacher, and when he is old enough and ready I will be his mate."

How will he handle it when he finds out the secret that lead his mates family to move to their pack? How will the secret change his whole world?

Then he only needs to make it until his mate is old enough to mate with without going completely crazy.