My girlfriend just posted on her Instagram an excerpt from a short story I wrote almost a year ago and I'm not sure what to feel.

Hey guys.<br><br>I wrote the short story (5 pages) we're talking about here for the first ever creative writing class I took as a freshman in college almost a year ago as the first assignment. I gave her a copy of it when we first met, as a gesture, and she seemed to have appreciated it.<br><br>I recently learned that she posted the excerpt below on her IG account and her story. She credited me as the writer and all, but the thing is, this is just something I wrote as an assignment. I haven't posted it online anywhere, and she just... posted it. I don't know, I don't really feel bad but I just feel weird. It feels weird to see something that is essentially mine being posted on her page, and it feels like she's using my work to get clout. I don't know.<br><br>The excerpt:<br><br>*His warm, slender fingers brushed against mine and I felt my chest swell. His eyes narrowed as he lowered his eyelids, as if wincing at a sharp pain, and for a moment, I dared to hope that he too felt what I did. As I looked at his face, my breathing caught in my throat. I was so lost in his eyes that my world passed through an entire lifetime. Every fleeting moment from my childhood came back to me. I could see our first meeting. I could see the way he lowered his eyes, as if wincing at a sharp pain, every time I stood next to him. Every time, every single time, the way the world around us would change, the way the trees, the flowers, and the birds would fade into the background like the supporting actors in the background of a play, the only spotlight in the centre of the stage would be him. Every moment from my childhood, every moment from my school years, every moment from my college years, every moment. I could see it. I could feel it. Every single moment came back to me as I stood next to him in that park, and every memory reminded me of one thing. Him.*<br><br>Please, tell me how to deal with this situation.