若隐若现若有若无忽冷忽热忽远忽近
[ruò yĭn ruò xiàn ruò yŏu ruò wú hū lĕng hū rè hū yuăn hū jìn]
'Sometimes visible, sometimes not; sometimes present, sometimes gone; Sometimes warm, sometimes cold; sometimes near, sometimes far.' It portrays complex and fluctuating relationship feelings, hinting the ambiguity and volatility associated with romantic entanglement.