Final answer:
Robbie's sentiment in this statement is that he is worried about being late for his own wedding.
Step-by-step explanation:
The best way to determine Robbie's sentiment in this statement is by analyzing the context and tone. Robbie's statement, 'We better get moving. I don't want to be late for my own wedding,' suggests that he is worried about being late. He wants to ensure that he arrives on time for his wedding, indicating his concern and desire to avoid any delays. This sentiment is supported by the use of the phrase 'better get moving,' which implies a sense of urgency.