Reconnected with friend, no response. Did I say something wrong?

So we haven’t talked in 3 years. She knows it was due to her honestly but I’m not pointing the blame. When I reached out she kept saying in almost all the messages she missed me, glad I reached out and she had wanted to reach out again (she reached out before but I was short with her). She seemed genuine. I told her I missed her too. Our convo was back and forth and pretty good, we had said we could meet up when she’s back in town because she moved while we were not talking. The convo continued maybe for 24 hours and then she read it and never replied. But has been online. I’m a real anxious person and it kind of has me thinking “why did I even reach out?” I was expecting more or atleast us saying “ttyl” to end the convo or something, you know just due to us not speaking for years. Maybe I expected too much.