对于爱情我们都是后知后觉
[duì yú ài qíng wŏ men dōu shì hòu zhī hòu jué]
'对于爱情' means 'regarding love', '我们都是' implies 'we all are', and '后知后觉' suggests 'realize later than expected'. This username reflects the feeling of realizing too late what should be done when it comes to love.