我不假装大笑谁来替我坚强
[wŏ bù jiă zhuāng dà xiào shéi lái tì wŏ jiān qiáng]
The user may be trying to say when I'm weak (like pretending to laugh), if I do not try hard to stay strong on my own, there's no one else out there who could take care of it for me. The nickname might express a sense of isolation and self-reliance.