She recognises his voice as that of the sundial, and believing him to be its disenchanted spirit, pours out her love for him, much to Florian's dismay. Not knowing how to tell her he doesn't love her, and recognising that the blow would kill her, he sends her away with a promise to return presently.
She recognizes his voice as belonging to the sundial, believing it to be the spirit of the sundial, pours out her love for him, much to Florian's dismay. He doesn't know how to tell her he doesn't love her and knows that this would kill her, so he sends her away with a promise to return presently.