An unexpected rebirth and time travel allowed Harry Potter to get to know Tom Riddle again. When he landed in Riddle, he could get to know Tom again - what Harry meant was that Tom was evil and Harry was dark, but Tom Riddle no longer tried to hurt Harry. Perhaps the embrace of darkness was warm and safe.
Warning: The young couple in Dark Harry are slightly shady. The story of Harry Potter meeting Tom Riddle after traveling through time. This is not a "high confrontation" story. You can understand it as: the young lovers stick together, and the dark lovers join forces.
Purpose: Love is eternal life