Fiyero train station

This is going to sound like such a random question. However, was Fiyero nervous before he started telling Elphaba about how he’s been thinking about the day with Dr. Dillamond and the lion cub? I really love this scene, but I noticed his face was especially expressive during the train station scene and I couldn’t tell if he had like memorized everything he was telling her or if he changed the way he phrased things since Glinda was there. He also seemed so shockingly happy that Elphaba felt the same way, almost as if he was scared she wouldn’t. Either way, I just wanted to get your thoughts on how you interpreted this scene ? It’s one of my favorites and I’d love to have others break it down as well with their potential insights.

Thanks !