When Harry looks at Tom, he feels overwhelmed. There is a spark that makes him hopeful, the fear that nothing he does will save Tom from himself, and the horror at what his lies might lead to. When Tom looks at Harry, he feels nothing. Until he does, and then Harry's world starts drowning in blood.
Tom Riddle is a frightening coil of darkness, cruelty, and greatness, and changing him is Harry's only hope for saving people he loves. Going back in time, he takes Tom from the orphanage, but his optimism shatters with every year they spend together. Tom still longs for darkness. Tom stifles him in his possessiveness. But Harry loves him, and the future changes.
Proud. Unique. Determined. From the second Sebastian sensed Ciel Phantomhive's soul, he realized their contract would be different. He was ready for it. And so he waits. He hungers. He is getting obsessed. He will do anything to devour this soul, and the fragile attachment to the boy that has begun to spread its icy fingers in him will not stop him. He thinks. [SebaCiel].
Summary: they met, they fell in love, they built a life together. Now, twenty years later, Justin is sure Brian's love for him has reached its limits, while Brian seems unable to let him go.