Her attitude towards sex is very comforting to those of her friends who get into terrible states of passion and jealousy, and feel cut loose from their moorings. She seems to regard sex as a wholesome, slightly silly indulgence, like dancing and nice dinners--something that shouldn't interfere with people's being kind and cheerful to each other.
The protagonist's perspective on sex provides a sense of reassurance to her friends who struggle with intense emotions like jealousy and passion. Her outlook allows her friends to feel more grounded and less overwhelmed by their feelings, suggesting that her presence is a stabilizing force in their lives.
She views sex not as something serious or fraught with consequences, but rather as a lighthearted and enjoyable activity, comparable to dancing or sharing a meal. This perspective promotes kindness and positivity among her relationships, emphasizing that these experiences should enhance rather than disrupt interpersonal connections.