我说爱你你说对不起
[wŏ shuō ài nĭ nĭ shuō duì bù qĭ]
'I tell you I love you, but you say sorry' depicts the sad and helpless situation where one's expression of love gets rejected by the other. The word 'sorry' implies the recipient's inability to reciprocate feelings and acknowledges the awkwardness or difficulty.