她情深似海却不肯为我而蓝
[tā qíng shēn sì hăi què bù kĕn wéi wŏ ér lán]
It expresses deep affection from someone else which won't be given in the way the owner of the username wishes, metaphorically comparing love to a vast ocean. The color 'blue' may imply purity or fidelity which this deep love does not yield for the username owner.