Why is she copying me?

My ex and me had a rough breakup and she will pretty much bad mouth me on social media. The weird thing is she is also copying exactly what I was doing in our relationship. I am a graphic designer and she randomly started doing what I do after our breakup. Its kind of weird because she was not into that kind of thing. Also, she even tried to work on the same type of projects I would do. I'm just wondering why she is doing this?
Why is she copying me?
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