Final answer:
Lila's engagement to Stefano affects her friends, such as Pasquale, by causing emotional distress and reflecting on social and cultural norms.
Step-by-step explanation:
The difficulty of Lila's engagement to Stefano on her friends, especially Pasquale, revolves around the emotional turmoil and the complexities of social relationships. Pasquale, as one of Lila's friends, may face feelings of jealousy, betrayal, or disappointment stemming from his own affection for her or his expectations about her future. These feelings are exacerbated by the societal expectations and the personal significance that characters attribute to marriage and personal connections. In a broader context, Lila's engagement can also be seen as a reflection of the societal and cultural norms that govern the characters' lives.