Welcome to healthcare magic!
It is sad to know that your daughter had this serious illness in young age.
Chronic calcific pancreatitis
is a debilitating disease with considerable morbidity.
But once the disease become static and stops worsening it can be managed in reasonable way.
Your gastroenterologist will be right person to guide you about the dietary program and the enzyme supplement she will need and the insulin
supplementation as required.
If she stops loosing weight, does not have ascites
then the disease is probably in stand still.
You should tell everything to the man in question for marriage.
I think if she keeps a regular follow up and takes regular medicines, she can have the bliss of married life and bear children too, depending on her health.
I hope this advise would be helpful for you.
Still if you have any queries or doubts, please write me back,
I would be happy to solve them.
I wish her a great health!