紫色薰衣草的忧伤
[zĭ sè xūn yī căo de yōu shāng]
Purple Lavender represents the pure and sweet love, while '忧伤' means sadness. So this nickname is like 'Sadness in the field of Purple Lavender.' The person who takes such a nickname may long for something or someone that makes her/him sad and melancholy, and usually be used by young lovers.