The tenses do not agree. Even if "leave away" meant something, which it does not, it could not be the same thing as "fell apart" which is in the past tense.
The tenses do not agree. Even if "leave away" meant something, which it does not, it could not be the same thing as "fell apart" which is in the past tense.
It can, in the sense of becoming emotionally upset. "She broke down/fell apart when she heard the shocking news."
In another context you could say that "the negotiations broke down/fell apart because neither side was willing to compromise."