姓刘留不住姓梁心瓦凉
[xìng liú liú bù zhù xìng liáng xīn wă liáng]
Here 'Liu (last name)' symbolizes someone who is hard to keep while ‘Liang (last name)’ feels cold-hearted and distant like the weathered tile of an old building. It metaphorically speaks about difficult personal bonds or relationships that cannot be maintained due to emotional distance or circumstances.