Answer: He’s devastated that he cannot marry her.
Step-by-step explanation: In Act 4, scene 5, Paris arrives with Friar Lawrence and a group of musicians for wedding preparations. When he finds out that Juliet passed away, he said, "Have I thought long to see this morning’s face, / And doth it give me such a sight as this?" He is upset that Juliet died the morning of their wedding day.