She has to practice so she can be his ideal cool girl. If she doesn't practice then she'll go totally silly in front of him, and then he might utter the forbidden line "You're not what I expected...", which would result in either one or both of them dying pretty soon afterwards.shouldnt she talk to him and give a hint that shes interested instead of just taking recordings i understand shes a obsessed type but only listening to recordings of him and not talking to him wont help