所谓的不在乎是怕伤的更深
[suŏ wèi de bù zài hū shì pà shāng de gèng shēn]
The phrase signifies an attempt at self-protection by seeming indifferent—'so-called indifference is actually a fear of deeper hurt'. It implies a person who appears not to care about someone or something in order to prevent getting emotionally wounded further.