Girls, What went wrong with my crush?

There was this girl in my class who I really liked and had feelings for. During the two-week holiday break, she added me on Snapchat.

The next school term I came back with a pair of sunglasses hoping to impress her. However, someone told her I liked her and she said ‘I like Nathan a little bit'. No idea what that means.

During lockdown, I posted on my Snapchat story and she was the first person to view it. The next night she sent me a snap that said ‘Hi X’, I started saying nice things and flirting with her in the chat. Throughout our conversation, she took several screenshots. In the end, she said bye, I wished her goodnight, she took a screenshot and then left.

I asked her why she kept screenshotting the chat but she sorta left me on delivered. I decided to reply back with fake streaks but after snapping each other a couple of times she left me on delivered and that didn’t work out. I could tell she was ignoring my snaps because her snap score goes up by a few hundred to a thousand each day. She'd often take a very long time to open my snap and would no longer be the first to view my stories.

I made a new Instagram account since I lost access to my old one. And put on my story ‘Is she into me?’, the next day she requested to follow me and I deleted the story and accepted her request. A few hours later she unfollowed. I contacted her on Snapchat and she said ‘sorry that probably must have been my sister’ I asked if she could refollow and she agreed to do so. She asked me why I posted that on my story and I apologized and she said ‘HAHAHAHAHAHAH’.

I asked her out sometime later and she said no and said she was seeing someone even though I knew she was single. Girls if someone could point out what went wrong with my crush that would be really helpful, thanks.
Girls, What went wrong with my crush?
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