Angelo a 17 year old has no past knowledge. Why is it he only remembers certain things and what is his tie to the world?

Angelo and Derek have a dark past. Angelo is the Head Alpha of the EclipseMoonPack. Derek is the Secondary Alpha of the same pack. When trying to disguise themselves and lie low, Angelo meets the Human Grace. Derek meets Grace's seemingly Human sister Jazzy. They realize their mates may be human and they try to not get close to them for their sakes. How will the initial plan work? Will it Work?