Why have she not deleted it?

I have an ex girlfriend. Who I broke up with. Under some circumstances. We have a shared google drive folder, where all our pictures are. I didn't delete it, cause.. I can't, my heart won't let me.
The thing is, why didn't she delete it.
If you're gonna say she didn't see it or forgot about it etc.
After a year, she changed the file name from something to "archive". Why didn't she just get rid of it. Opinions on what's her purpose?
Why have she not deleted it?
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