Is this girl copying me or is it just my fear of being « basic » as a type 4 ?

Hello Reddit, I need an outside perspective on a situation that's making me really uncomfortable. I'm an Enneagram Type 4 (4w5 to be precise), so this whole thing is directly triggering my core fear of being "basic" and losing my unique identity. Here's what happened: During October (Pink Month), I wore a lot of pink and posted photos and videos on my stories saying I love the color, etc. Kiné (a girl I follow, who also happens to be a friend of my crush) saw all of this. A few days later, she posted a video of herself in pink, saying: "Don’t usually wear pink but I like it." She used the exact same music I had used in my story a few days earlier, which is not a popular song at all. 3 days after that, she posted another video of herself wearing pink.

A few days later, she posted a feed publication with 3 outfits, 2 in blue (her self-proclaimed favorite color) and 1 in pink, asking her audience which one they preferred. 83% of voters chose the pink outfit.

The final detail that bothers me: Almost every time, she added the same personal touches/stickers/text overlays to her stories that I had used in mine. It feels calculated.

My struggle: As a Type 4, this makes me incredibly uncomfortable. It feels like she's stealing my "vibe" and it’s waking up my fear of being a copy of someone else. My intuition is screaming that this isn't innocent, especially with the crush dynamic. Am I overreacting? Is this normal social media behavior, or is she deliberately copying me/competing? Thanks for your insights.