All she had to do was to open her mouth and say-
-Hey Heathcliff, can I get you something?
-Looking for something Heathcliff?
-Oh look Cathy, Heathcliff has just walked in (and now sitting behind you listening to your idiotic ramblings)
-Take my shoe Heathcliff and hit me over my head with it so that Cathy will know that you are here.
But what did she do instead? Nothing!!!
Kept quiet and set off a series of events that would destroy so many lives.