Olivia said calmly, "Mr. Heath, I don't want to seem rude, but Mr. Heath is no longer in a critical condition. He just needs some time and care. His body would eventually recover.

"My presence wouldn't be needed. Besides, your sister doesn't want me around. I don't want to be the source of strife in your family."

Since Linus visited her in person, he probably didn't just want her to treat Mason.

He wanted a great doctor like her close by so she would be able to take care of any emergencies