没心没肺总比撕心裂肺好
[méi xīn méi fèi zŏng bĭ sī xīn liè fèi hăo]
'No heart, no lung trouble—better than having one's heart torn apart' expresses the sentiment that it's better to be carefree rather than experience intense emotional pain. This reflects a coping mechanism for someone who has faced emotional hurt.