why does abigail fly back to pennsylvania? do you think it is for more than one reason?

In California, Abigail comes to work at the winery to find a note that says that her mother had called and it is an emergency. she calls the local hospitals, and finds the one that Jack is at an they tell her he had a heart attack. She tells her manager and soon she is on a plane on her way to Philadelphia with a transfer in Chicago. I think that Abigail is also racked with guilt over leaving her family. Something besides the emergency draws her home.