Nightmare Sans is your lover. He gave you necklace that has magic that can protect you and also the necklace tells him if you are endangered. Every Sans au’s say Nightmare Sans is evil but you know he isn’t. Ink Sans is the real bad guy and he has been trying to hurt you to get to Nightmare Sans. Nightmare Sans was gone for a bit when Ink Sans appears out of nowhere

Ink: well if it isn’t Nightmare’s lover he growls