Why does a ghoster do this?

So I got ghosted by her, we had a great emotional closeness for two years until she started getting more and more distant. One day she simply ignored my message for a month. After that, I reached out ( not with an angry text) and now she adresses me just by my first letter name while before she used terms of endearment.

I never did anything to deserve ghosting, so this is strange. After reaching out, it's a text here and there from her, but I don't expect any of it. I needed a closure for my sanity.

Why does a ghoster do this?
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