时间不停留爱人已变狗
[shí jiān bù tíng liú ài rén yĭ biàn gŏu]
'Time does not wait for lovers who turn to enemies.' Conveys regret or resentment over lost time in a deteriorated relationship, suggesting love has eroded, or someone beloved turned against oneself as dramatically as turning from a human lover into something hostile, such as a 'dog'.