All meaning is context dependent. Every behavior is useful in some context. Everything anyone does, even destructive things are for a positive intent. People work perfectly to accomplish what they are currently accomplishing. The real value of NLP is in assisting a person in formulating effective life strategies, communicating more effectively, and in creating and attaining achievable goals.
Communication is the key to relationships.
NLP can assist a relationship to transform into a symphony of joy and magical bliss.