He was the one friend in the very beginning to come back for revenge his was the one representing life itself not the reincarnation. He created a law before he died "promised on his life and his next lives to build a place of purgatory to trap them and feel the wrath and the betrayal he felt until the final dance of death do, they ever part. He sealed the fates of his fallen friends in his blood that dripped out from his lifeless cold body." and that law remained constant through ALL of the book.

This question always will be complicated. everyone is connected to eachother in their own way.

some of the main ones are

Lovells relationships - jess (Like a grandmother), Jane (biological sister), Andras (friend), Lucid (ex crush), Luka (lover), Devin (enemy).

Lucid's relationships - Lovell (ex crush), Jane (friend), Luka (friend), Andras (future lover), Devin, sunny, nightmare (all enemies)

The law is "Anyone who has suffered the same fate as I and are too stubborn to die - will become greater, a shifter to hide from the reaper. A form that can reverse its age and heal itself naturally, an immortal jelly fish." meaning anyone who was in the crash or for any future crashes like his - their genetic code will be rewritten similar to his.

another law is if you have overdosed or messed with too many hard drugs you can no clip here, anyone who finds a random pocket may also wind up there as well resulting in most creatures and life forms.

He corrupted his friend and killed his other friends in a past life and has been in purgatory since then, he developed an obsession with lovell and the power shifters bring, he wants to move onto the great beyond to finally finish the cycle and stop running from his past. He's unwilling to get help and needs to be in a final purgatory where he's stripped of his rights and powers.