Am I being too impatient?

I matched with this girl on a dating app mid December last year. We went on two dates, and then she traveled home for the holidays. During that time I tried to stay in touch but she replied me super late and eventually left me on read for more than a week. I assumed she lost interest and started trying to meet new people. Then in the new year I got some really good news and she replied to it to say congrats. I thanked her, and later that day tried to start conversation about something she posted. She replied to me two days later. At that point I was fed up and ready to not speak to her again. Then, a few days later she asked if I wanted to meet up and get coffee. I did, we talked for a little over an hour and then tried to make plans for a date on the weekend. I eventually texted her with concrete plans on Friday for the Saturday date, and she didn't reply till Saturday afternoon, saying she didn't feel great and would like to reschedule (but didn't offer a date or any specifics).

I'm just personally sick of the whole thing, I can't tell if she's interested and I'm running out of patience (feels like I'm playing games). I planned to just ignore her text/ghost, because I've been in situations like this where I feel like I'm being fed breadcrumbs or just strung along. But then again today she replied to something I posted even though I left her on read.

I'm struggling to feel interested knowing that communication between dates from her is near zero. But I also don't want to prematurely move on. I have since deleted said dating app because I feel like I'm running in circles.