There's a school of thought that says "low interest, next." And they're right. She has low interest. You would do best to simply move on.
However,
I remember in college, I chased a cute girl for a while. We met through mutual friends, and I knew she thought I was cute at least on a physical level. But she threw everything at me. "I'm busy until xyz date, let's talk then" and "I have a boyfriend" etc. I was persistent and aggressive, actually. Maybe too persistent, now looking back on it. I was after this girl. But she eventually agreed to a date with me. A coffee date, actually, not even a real date. I was, in essence, her orbiter, a suitor. But I was the most persistent, aggressive suitor. She was between guys at one point, agreed to meet up for drinks, and I banged her.
Should you take that route? No, probably not. Just an anecdote. But, being unfazed, confident, and persistent will win some girls.