Ron whirled around and the relief on his face was clear.
"Oh good! You are here! I thought..I wasn't sure..," and he collapsed into the chair across from her, exhaling loudly, and then sitting up and glancing at Madame Pince, afraid that he'd drawn her attention. He turned back to face Hermione, his eyes looking at her face before he started. He leaned forward, and keeping his voice at a low whisper, said, "Something's happened in Hogsmeade. There was some commotion and then a building bust apart, flames and all. I was worried that you were down there, maybe caught in the explosion or something. I came running," and he turned a bit red as he found his breath, "To be sure you were here, and here you are," he said, not quite positive he could effectively explain his concern.
He sat, his chest rising and falling as he caught his breath.