At what point do you stop "chasing" someone?

I’ve been talking to this for about 3 months now. For longest time we didn’t really see each other since she was working 2 jobs and had school. I tried asking her out before then, and the one time she was free it didn’t work out. Understand she was trying to get ready for trip home, but I told her didn’t want to walk around wal mart just for hell of it. Even offered we go somewhere nice to eat and just relax. Guess she didn’t have the time… I like her, yes a good bit. But I’m not desperate.

So fast forward a bit, I decided maybe its best to just move on and stopped communicating with her. She texted me, started talking again, some harmless compliments flirty stuff. Not taking classes for upcoming semester that she’d have more time, taking a break. This whole time besides like once, not a single date or have we hung out. Even though I’ve asked her out quite a few times.

Finally after all this and we still been talking to each other, she had some car trouble and had some time in the morning to see me. I picked her up, we went back to my place and just kind of relaxed, cuddled, ran my fingers through her hair and talked. She told me she had been really stressed and I gave her a back/neck massage. Nothing happened more than that. No sex, just harmless kiss on cheek when I dropped off home.

That was couple weeks ago now…..I figure great went well, got to know each other more personal and I’d like to ask her out again and I have! But now she acts like I don’t??

For example I asked “Working today or tomorrow, we should hang out if you have time this weekend.” Next day….No response I was like well no big deal shes probably busy. I text “Hows it going?” She responded “Not much, you?” My thinking is cool maybe shes free sometime today, I asked her again if shes free sometime. No response, yet somehow when I talk about other things she manages to respond..?

Not sure really what to do anymore? I’m getting to the point where I don’t feel like trying to pursue this anymore. Just kind of annoyed…..Yet every time I say this I find myself thinking about her….

I’m vastly confused here.