I like Irene more than I liked the gypsy lady. Whose name I can't even remember.

Irene's death was such a throwaway, which is why I just don't think it happened like that. I think Moriarty told Holmes she was dead to mess with her, and we only have his word for it that she is dead. I think there's something in Holmes smelling the hankerchief and throwing it away the way he did. I think he realises she's probably not dead either.