你是我的太阳却为她发光
[nĭ shì wŏ de tài yáng què wéi tā fā guāng]
Using solar metaphor, the netizen implies deep affection toward someone who brings light and warmth to their life. However, despite being 'theirs,' this source of light chooses to 'shine' for someone else, evoking bittersweet emotions or heartbreak.