Here's why:
* Alex's character arc: Throughout the series, Alex goes through a lot of growth and changes. While she starts out as the rebellious, selfish one, she gradually learns to be more responsible and considerate. This development is evident in season 3, but it's not a sudden transformation.
* Situational interactions: Alex's behaviour is often influenced by the specific situations she finds herself in. She might be playful and teasing with her friends and family, but she's also capable of being supportive and understanding.
* Viewer perception: What one person perceives as "nice" another might see as "manipulative" or "sarcastic." Alex's personality is complex and her intentions are not always clear.
Some examples of Alex's behaviour in season 3:
* More mature and responsible: She takes on more responsibilities in the family business and shows greater maturity in her relationships.
* Still playful and mischievous: Her sense of humor remains, and she still loves to tease her siblings and friends.
* Kind and compassionate: She shows empathy and kindness towards others, particularly her family and close friends.
Overall: While Alex's personality and behavior are nuanced, season 3 likely sees her exhibiting a more mature and empathetic side, even if she still retains some of her mischievous tendencies.