How should I break this shy girl out of her shell?

She flirted with me and I figured I should make my feelings known and I told her I liked her and gave her my number then said i know your really busy but if you want to hang out just text me and I'll make time. She texted me asking personal questions and is showing interist and she works fulltime with school so she's busy. She said she wants to see me apartment and I texted her to hang out a few time and she had class until 9pm so couldn't. Then the next time I texted her she said she had to do hw. She not lying but still I was annoyed so I stopped texting her first. I texted her last night and in said that I know your busy but if you find free time and want to spend it with me I will make time. I don't know what else to do.
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She's been flirting for a year and I made a move at the end of last semesterm she texted me this semester so I'm trying to actually get things started.
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How should I break this shy girl out of her shell?
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