请人把这句话翻译成英文

当你离开的时候，我会很难受，我会偷偷的回头，看你的背影。。。
When you leave, I would be very difficult subject, I will sneak back to see your back. . .

When you leave, I'll very uncomfortable, I'll see you on the back, the figure.

When you living,i will be sad and sneak back secretly to watch your figure.

i guess...
I was staring at your shadow when you were off me, I would feel be hurt but I still keep my eyes on you ...