Well, I may be different but I think I'm going to side with your daughter.
Regardless of his 'reasons', your son is a grown man. If he can't bring himself to be there for his sister, then he needs to except she is not going to be happy.
I doubt she is going to shun him for life, but having a child with CF is a life-changing event. If she chooses to surround herself with people who chose to be supportive, this is her call.
I agree it may cause some family conflict, but frankly, IMHO his behavior regarding graycie & his SISTER should be already.
At the end of the day, you may have to sit this one out and let things happen as there is no way you can be in the middle w/o it getting messy.
Regardless of his 'reasons', your son is a grown man. If he can't bring himself to be there for his sister, then he needs to except she is not going to be happy.
I doubt she is going to shun him for life, but having a child with CF is a life-changing event. If she chooses to surround herself with people who chose to be supportive, this is her call.
I agree it may cause some family conflict, but frankly, IMHO his behavior regarding graycie & his SISTER should be already.
At the end of the day, you may have to sit this one out and let things happen as there is no way you can be in the middle w/o it getting messy.