烟如女是我忘不掉的伤
[yān rú nǚ shì wŏ wàng bù diào de shāng]
Smoke Resembling Woman - An Unforgettable Wound: Portrays memories (of women) associated with pain and longing. It suggests there are people (especially women in this context) in the netizen's past they can't let go of, like fading yet haunting smoke, a lingering sadness or regret.