Downloading facebook data on android?

[Jim]

It's going to be a ZIP file, so you'll need something to open it. It's possible that the download was aborted because the file was larger than the amount of available space on your phone.

But, think about it.... even if you find no evidence of cheating, will that change your mind and allow you to trust her? Probably not. Once the seeds of suspicion are planted, they usually thrive no matter what.

So, what's to gain by getting her FB history? Either you'll know she's cheating or you'll continue to suspect her. Drop her, and find someone you are willing to trust.