<human>: This [23F] in question is a co-worker of mine. I know she's not seeing anybody and she's shy(just like me). We both work part-time, sometimes together, sometimes not. Sometimes I see her a few times in the same week, sometimes once every 2 weeks. Random is random.

It's a follow up to this: 

So I had a "meh" coffee date with her last winter. Okay, whatever. Now, during this summer, we were talking during our break and she told me how she likes to do bicycle but she has nobody to go with her. So I decided to exchange numbers with her and I told her we should go together someday because I'm exactly in the same boat. She seemed cool with it. Now when I try to plan something with her, she tells me she's really busy and it won't be possible. Okay, whatever. When she told me that, I stopped making myself some ideas. If she wants to reschedule, fine, but I won't wait for her.

After that day, we didn't see each other at work for like a month, maybe more. Good, maybe I can forget her. Well one day, late on a saturday night, I receive a text from her(we never texted before), asking me if I'm still alive, what I'm doing, etc. Why would she do that? Does she care about me or not?

I used to try to hang with her at every possible opportunity at work but I told myself to stop, that was pathetic. Well, now that I've stopped, the next time we saw each other at work, she would try to hang with me at every possible opportunity. Now I'm just confused. I don't know what to do. I like her. I wanna hang with her. She's a good girl. But I just don't understand her. Do I try to set up another thing with her, again, or should I just stop caring?

Could you distill the essence of the text into 1-3 sentences?
<bot>: When I'm getting close to a girl, she backs off. When I back off, she tries to get close. Mind = confused.