What if kindRED is actually a part of MJ soul that ended up in hell after dealing with Mephisto, that after being tortured on hell snapped up and now she is back to take revenge on Peter, maybe as part of the Mephisto plan we saw many hints in the past two years? She is actually kindred to him, as in soulmates, she has red in the name, it makes sense that she knows everything about Peter’s life. Maybe once Peter and MJ started dating again they sort of break the pact with Mephisto and he was free to start his plan.