Did she change her mind about dating me?

At the end of a second date with a girl, at the door of her apartment before leaving I asked if she'd be down to go on more dates. I could sense hesitancy in her answers. She said we could go on another date, but she said things like "keep it casual", "I'm not looking for anything serious", "I don't want to lead you on" and things like that. Technically she did agree to "one more date", but I left that night under the impression she's probably not interested so I decided to slow it down and not reach out for a while. However a couple days later she actually reached out to me, just asking me how my day was and from then on the rest of the week she's been engaged in our texting conversations. I wasn't gonna ask her out but since we've texted a bit I ended up asking her out to a campus event the night of, to which she agreed and we had a great time. We still text, but her responses have gotten slower (she says she's busy) however she still continues the conversation in her replies. I asked her out on another date this weekend when I ran into her in person, to which she agreed with no hesitancy.

So from all this I'm a little confused as to why she didn't seem interested but she's being very reciprocative in our texting and going out recently.

Did she change her mind about dating me?
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