你宠她
[nĭ chŏng tā]
It means 'You pamper her'. This online name conveys the idea that the user adores and treats someone (often referring to a lover or spouse) with immense care and affection. The Chinese character 你 means 'you', 宠 can mean 'to cherish' or 'to favor', while 她 means 'she'. So in this internet handle it refers to the act of someone caring about 'her' a lot.