我以为你懂所以什么也没说
[wŏ yĭ wéi nĭ dŏng suŏ yĭ shén me yĕ méi shuō]
'I Thought You Understood, So I Didn't Speak' describes a regretful silence based on false expectations, expressing a moment of communication breakdown between the user and someone they thought would understand without explicit explanation.