你没了从前还想没了以后
[nĭ méi le cóng qián hái xiăng méi le yĭ hòu]
Literally, if there is no 'you' in the past, I'd still think/wish there would be no you in the rest of the time. It expresses grief at losing something cherished (could be a person), while also hoping not to see its appearance again in future life. It contains complicated emotion such as missing, grievance, unwilling to move on, or determination not to recall those things or people again.