I feel very sad, like I lost a part of me.

我觉得很难过，好像我失去了自己的一部分。

youdao

I need a lot of time alone, but when I share, if you are not able to share with me, and I feel lost, become very convulsions.

我需要好多独处的时间，可当我分享时，你若不能够与我一起分享，我又会感到失落，变得很抽风。

youdao

You leave let me feel very sad, because I lost a friend in Vancouver.

你的离开我很伤心，因为在温哥华我失去了一个朋友。

youdao