Trying to get her interested again?

I Think I came on too strong and a girl I went on a couple dates with went cold on me, we have known each other for over 10 years and had a fling about 9 years ago. We are both single again at the same time so we were texting as I have done with her over the years, how it going blabla, we have run into each other at social things but rarely. So both of us being single this time I asked her to dinner, we ended up having lunch and then dinner about a week later, I’ve been trying to set something up with her and at first she seemed really excited but when I try and make it an actual plan it hasn’t happened, now she’s gone cold and answering me slowly, we had a lot of fun both times we meet up, I think I freaked her out by sending too many texts and seeming desperate, I don’t know what to do, the tone and her communication has changed, just looking for some advice on what to do.
Trying to get her interested again?
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