I had a casual sexual encounter with a girl who lives 2-3 hours away a few weeks ago. Tried to get her to come visit, but she said she has plans that weekend. She also said she will definitely be in (my) town in August. I just responded with "K"

I'm just looking to plate her as a fuck buddy or possible FWB. She seemed really down at first, but I was surprised she didn't offer a closer date if she really had plans. I'm guessing she doesn't want to make the trip JUST to see me, which seems like she doesn't like me enough to plate. Based on all her previous texts she implied she would make the trip JUST for me so I'm a little thrown off.

Should I text her in early August or just wait and see if she reaches out to me? My gut feel is there is low chance of her reaching out to me now, but maybe reaching out to her will blow any chance at all by coming off desperate...