Everyone always leaves Keigo for reasons that he sometimes understands, and sometimes can't.
Draco has two questions to choose from, and the answer to both will unravel the secret of his love for Harry Potter. That Harry himself is the asker doesn't make things easier.
He was always proficient at hiding his emotions from his friends; but never from Harry Potter.
Draco's eyes fill with tears as he reads the untidy scrawl that fills the first line of the first page of the diary of Harry Potter. EDITED.
Ginny cheating on Harry only led to him finding who exactly he loved, and how he was going to protect him from Lord Voldemort and his orders to kill Dumbledore.
Sometimes, all Draco felt like doing was to scream. Scream his heart out, scream in dismay that Harry Potter would never be his.
Two kisses don't make a relationship. But maybe, for Draco, two kisses are enough.