恨没你的未来爱有你的那天
[hèn méi nĭ de wèi lái ài yŏu nĭ de nèi tiān]
This means feeling regret about the future without the person ('you') but cherishing or remembering a time in the past when there was love with that person. It expresses longing for what could have been, had the relationship not ended.