Final answer:
Ting Ting from 'Rouge Hearts' appears as an exotic and mysterious figure, transforming in the presence of a formerly familiar lover who now seems like a stranger. The rose analogy symbolizes the potential for deep, passionate love that has yet to be actualized.
Step-by-step explanation:
Ting Ting from Rouge Hearts is portrayed as a complex character, evoking a sense of mystery and emotional turmoil. The passage describes a transformation in her lover — from someone familiar to a stranger that both scares and captivates her. His comparison of her to a 'tiger-lily' under the moonshine accentuates her exotic allure and fiery appearance with red hair and eyes that turn black in the dim light. This excerpt reflects a pivotal moment where she is confronted with a more domineering presence, inciting fear and yet leaving her mystically mastered.
Similarly, the imagery of the rose taking on a delicate pink flush, but with a heart that remains white unless stained by a Nightingale's heart-blood, reveals the symbolism of pure love that has not yet fully transformed into passionate love. The rose represents innocence, yet with the potential for deeper emotions — paralleling the development and hearts of characters within Rouge Hearts.