I think childishness and Marianne’s romanticism-sensibility share the characteristic of self-centeredness but IMO not clamorous or manipulative. Babies wail instinctively to express need but excessive pampering has taught Annamaria to go beyond need. At three years old she has already learned guile in that continued wailing results in attention and treats however I do not think Marianne’s wails are the result of guile. Marianne has learned romanticism from literature and has been encouraged in her sensibility by Mrs. Dashwood but her excessive sensibilities are for her own (misguided) satisfaction rather than to gain attention or to gimmick others into action as are Annamaria’s wails. Annamaria is being taught selfishness and guile by the adults around her who are teaching her overreaction tends a reward and Marianne’s behavior is often self-absorbed, unfeeling and an overreaction due to her sensibilities which Mrs. Dashwood encourages and cherishes. Neither Lady Middleton, nor Mrs. Dashwood understands they are teaching their children to behave selfishly and inappropriately or envision how poorly that behavior will serve them in the future. (:D)