我心疼所有为爱低头的菇凉
[wŏ xīn téng suŏ yŏu wéi ài dī tóu de gū liáng]
It translates to 'I sympathize with all girls who lower their heads in submission for love'. '菇凉' is an internet slang term for young girls/women, reflecting empathy toward those whose self-respect has been compromised due to romance.