我因你而忧郁可你感觉不到
[wŏ yīn nĭ ér yōu yù kĕ nĭ găn jué bù dào]
This means 'I feel sad because of you, but you can't feel it.' It highlights emotional distance or disconnect in a relationship, where one person experiences deep sadness but feels it goes unnoticed or misunderstood.