Shit, shit, shit!
Okay, got that out of the way. Cancer is the darkness none of us want to believe knocks on our doors. If you cannot fly across the sea, please Skype or FaceTime your folks at least once a week. Believe me, it will be just as if you were there, with your love and support.
Then, I want you to learn about the stages of grief. Read a book titled, Final Gifts by two hospice nurses. Seriously, the book will give you insight in communication, awareness and learning what to expect. She may be wanting to stay strong, just be aware that sooner or later she will need you to listen. She will need everyone that surrounds her to listen.
I am so sorry.