She was upset with her family for wanting to manage her treatment.
She had answered the phone while in her friend's apartment and that is how she discovered he had been talking with her family. She felt betrayed and lashed out.

Hmm, I don't remember that line. Maybe she was referring to one of her previous "months", lol.

Thanks. But what about the "he doesn't live her anymore" line? Who is she refering to?
Life is Beautiful.

I always got the impression it was because Sara wanted to live the rest of her life the way she wanted instead of undergoing a bunch of chemo and whatnot for whatever amount of time she had left. A lot of people would find that selfish (not fighting foryour life to be with your loved ones). Her family may be a little overprotective, and her family and sister may not approve of this new life she has set up for herself, especially in her condition.