Selene did not know who it was from when she received that threatening phone call the day before. However, the moment Nigel blocked that blade for Aino, Selene immediately understood.
Nigel came to Star Island to protect Sabrina.
Not only that, everyone on Star Island realized that he had taken control of the whole island during the time Sebastian was silent.
Holden only realized when he settled back into Poole Manor after Nigel was stabbed. Everyone in Poole Manor had already been switched f