<human>: Can you give me the gist of the text in a nutshell?

Ages are in title. She works at a local health center. I had finished working out one morning and she was flirting with me, and we got to chatting. The next day I went in again (I train daily) and she was flirting with me again, so I asked her out. 

Since then we've been going out a couple of times a week. She's pretty relaxed and laid back, and we definitely have a lot in common, but I find myself getting frustrated with her communication style.

When we first started chatting she'd text me a lot, was prompt in responses, etc. We both work full time - and both love our jobs - so I understand I'm not a priority, nor do I expect to be one. Last night I tried making plans and didn't get a response for 12 hours, and then her response was that she had work until late and "might go out after that" depending on how she felt. She didn't get back to me at all.

Stuff like this really pisses me off, because since we started dating I've felt like I have been making the most effort to instigate conversation or make plans. I normally would have just cut my losses and called it a day, but she has explicitly stated a few times that she is into me and enjoys my company/wants this to go further. In the same place though, I feel like we haven't known each other long enough for me to tell her I'd like her to make more effort.

Another element to this that bugs me is that when we're out she can instantly respond to work inquiries (which I somewhat understand), but go 24+ hours without even a, "Hey, how was your day?" or something casual. I'm a pretty laid back guy, but it's starting to wear me down.
<bot>: Been seeing new girl for 4.5 weeks, I feel like she has lost interest even though she says she hasn't.