The morning of the opening ceremonies commenced and Justin would've been happier watching them on TV. He was antsy and wanted the trip to be over more than anything because the only part that truly mattered to him hadn't come yet.
He thought about the ring box he had hidden in the safe back in the hotel room when Emily was taking a shower the night before. She hadn't brought anything valuable so she had no idea he was even using it.
When would a better time come to propose than when they were on vacation? He knew months ago that he wanted to ask Emily to marry him while they were in Argentina. It was oddly poetic of him to want to do it during a time they planned to do something from before everything changed.
The problem was that he hadn't figured out exactly where the best place was. He might have to start carrying the ring around with him whenever they weren't in the Olympic stadium in case the right moment presented itself.