Simplify the following text for a Grade 5 native English-speaking person.
Original: A confused Duke agrees to let them put on the show , but only on the condition that only he is allowed to see Satine . Christian later goes back to see Satine to convince her that she loves him ( `` Elephant Love Medley '' ) .
Simplified: To convince the Duke to change his mind , Satine finally agrees to spend the night with him .