我不懂爱那是我会笑醒的梦
[wŏ bù dŏng ài nèi shì wŏ huì xiào xĭng de mèng]
This username suggests that the person is so innocent or naive about love that it's like a dream too ridiculous to take seriously. The implication is that thinking about it would be so surreal, they'd end up laughing and waking up.