我入戏太深才发现原来爱情
[wŏ rù xì tài shēn cái fā xiàn yuán lái ài qíng]
Translating roughly as 'I delved too deep only to realize it was actually love.' This signifies recognizing true feelings after being engrossed in something—like acting in a play—to the point where the lines blur between reality and performance.