[ooc: started writing this before Galen posted, sorry if it sounds weird now]
Donna's words echoed in Amy's mind. "He might die after all." She shook her head and took a step away from the Doctor. "No. He can't. I-- I can't watch-- not again." She glared at Galen, irrational and almost angry. "You," she said sternly, "are not letting him die. Do you hear me?"
When he bowed and assured her that the Doctor would live, she felt a little relieved. Man, and to think that this morning she was worried about finding cab fare back from Town Hall. Now she was worried that her best friend was going to die before he ever met her.