Isolation is a big issue for PWCs, many of whom are housebound. At the same time, too much attention is difficult, too. Neurological changes make mere paying attention exhausting for them. Sometimes PWCs are not even up to long distance phone calls with distant friends and relatives. At times like that, chat via email, and they ll let you know when they are ready to talk.
Dependency is difficult for someone who has been independent.
Let PWCs do what they can, but don t hesitate to offer to help without being asked first - and then follow through. CFS is a difficult illness. Difficult for the sufferer , of course, but also difficult for those of us who care. Don t be afraid to talk about how the illness impacts your relationship. Ask them what you can do differently, and then do it.