What is can a guy who calls you sister actually end up liking you?

It is possible for a guy who calls you sister to end up liking you. However, it depends on the context and relationship between the two individuals. If the guy truly sees the girl as a sister figure, then it is less likely that he will have romantic feelings towards her. However, if the guy uses the term sister as a way to mask his true feelings or to avoid rejection, then there is a possibility that he may develop romantic feelings for her. It is important to communicate and clarify the nature of the relationship to avoid any confusion or misunderstandings.