凉薄情深

This username 'liang bo qing shen' combines a somewhat cool demeanor with deep and strong feelings, meaning someone who might appear indifferent on the outside but has deep emotions. The 'coolness' could hint at a reserved personality, while 'deep emotion' suggests they can be very affectionate or emotionally engaged inside. People who pick this as a net name may have been hurt and hence don't easily show their true feelings to others.