是我犯贱把赔笑当做溺爱
[shì wŏ fàn jiàn bă péi xiào dāng zuò nì ài]
'It was my fault for mistaking smiling through pain as deep love.' Admitting guilt in misinterpreting enduring suffering or putting up a forced smile out of duty rather than true love. Expresses bitterness mixed with retrospective wisdom after realizing misplaced feelings.