A person can be called a muslim if & only if he beleives in only one almighty god ie ALLAH. The moment anyone beleives in deities other than ALLAH he becomes a disbeleiver (Kafir). This is the very basic concept of Islam. Also the type of dream which she has seen is something which inspires her to do certain acts which is against the tenets of islam and according to islam such dreams are from the devil - saitan. hence according to Islam she is a friend of saitan and thus an enemy of Islam.
