Introduction:

The show basically revolves around a teen/sassy wutch Sabrina spellman/Morningstar who deals with her love life ,friendship,new powers,battle of conquering hell as an heir of Satan and fighting against the Eldritch terrors to save the world.

 The former character of Nicholas Scratch (nickname Nicky/Ariel) who was a warlock and he's character is portrayed by Gavin Leatherwood. He befriends with Sabrina and there was some romantic sparks between them. He betrays Sabrina by agreeing  with the Dark Lord (Sabrina's biological father) to pretend to fall for her,but then he genuinely falls her  due to her charms and her witty attitude. Later on, he was forgiven by Sabrina for this act and after that they reunited.

Nicholas had a familiar Amelia,a werewolf who all had left after his parents died.

From the beginning bring gifted in conjuring he helped everyone. He even helped Sabrina and aunties to trap the Dark Lory (Lucifer) acting himself as the flesh acheron to cage Lucifer. Being the Dark Lord trapped in Nick's body and being dragged down to hell and tortured by Lilith, he suffered a lot. It sorta changed his personality, after  removing every ounce of the Dark Lord's  part from him, he somehow bigan  to hate Sabrina Spellman and tells her that everything that has happened is because of the greatest Sabrina Spellman.He also tell her that he hates her.

After various drama's in  the last season both Nick and Sabrina got together physically and accepted each other completely.Father Blackwood's plan of eldritch terrors were succeeding now the all powerful sabrina's (both of them)were the only  ones to save the world so she sacrificed her in order to save everybody. Each and everyone who teamed up against  fighting the Eldritch terrors with Sabrina, Ambrose and her aunties, including Nick were devastated aa she was now dead. But whimsical Nick( being so madly in love with Sabrina) claims to be unable to live without her. So as a matter of fact,he drowns himself in the sea of sorrows to reunite with her. It was revealed that both of them ended up together in afterlife creating at title of ‘Happily ever after’ for both of them.

Though its a fiction series I  still personally think that what Nicholas did was not a heroic stunt but bullshit. Sabrina sacrificed her life to make sure everyone is alive and safe . I agree she might have missed everything but she could also may have reunited with her former father and mother in the afterlife.

I didn't think that Sabrina was  that selfish character that she wanted to spend and eternity in afterlife with Nick. Nick could have moved on and started a new life that was gifted to him by Sabrina, than attempting suicide.

Thank you