I just can't undo it.

I just can't undo it. I just can*t Believe it you can't undo what is done. it's no use,i just can't do it. For real,I can't help it,I just can't,I am sorry! Why?Can't I just leave it all behind. I just can't get enough of it! I just can't seem to get it right. I just can 't make it one day without i just can`t turn dame it!why can't you just shut up!I can't say something wha Nothing real love can't undo这句话是什么意思?