Why does my friend copy me?

I’ve been friends with this girl for a year. We get on really well, except I feel frustrated because she is copying everything I do, my hobbies, my interests, even my dating life.

She messaged me after I took up dance and asked me if she could join classes with me. I naturally said yes and since then we have been going to class together.
I took photos of myself dancing in a studio and she messaged me asking how I got my photos done and she wants me to take photos of her dancing now.

I put on social media that I was back into dating and she messaged me asking how I got dates and where I got them from and I told her I met them online so she joined the same dating site and then sent me pictures of the guys she was messaging.

We haven’t spoken in a while, but recently she messaged me asking me for information about my career and what I’m doing now. A few days ago, she told me that she’s applied for the exact same course I did, at the same university I went to.

is this strange? Why is she copying me?
Why does my friend copy me?
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