Simplify the following text for a Grade 5 native English-speaking person.
Original: When questioned , Tristan says he can not answer to the King the reason of his betrayal since he would not understand , he turns to Isolde , who agrees to follow him again into the realm of night . Tristan denounces that Melot has fallen in love with Isolde too .
Simplified: Tristan now asks Isolde if she will follow him again into the night , and she agrees .