感觉你在变化我却无能为力
[găn jué nĭ zài biàn huà wŏ què wú néng wéi lì]
This nickname means that 'I feel you're changing but I can do nothing about it'. It reflects deep regret that things between oneself and a loved one seem to be drifting apart due to changes and that the helplessness and sorrow faced with irreversible situations.