Last Monday: We were supposed to have a first date. She canceled at the last moment because she lost her apartment keys (I was nice and understanding about it and offered to help in finding a locksmith or bringing any tools)

Last Tuesday: When I was on my way to the bar, she texted she would be 20 minutes late. I said that I hope she is not very late. She tried to hurry up and was only 5 minutes late. The date went smoothly, but the conversation was okayish for me.

Her text communication was not very good in general. She would sometimes ignore some of my messages. She didn't even have a profile picture on WhatsApp (maybe she didn't save my contact)

Yesterday: We were supposed to meet at 3 pm at my place for a coffee. She was not very communicative on Saturday, so I texted her again at 1 pm Sunday to confirm the plans. She didn't respond. But I cleaned my apartment, got dressed well, and waited for her all afternoon at home.

At some point, In my mind, I felt she had decided to ghost me and didn't even bother to cancel the plans. So I was upset and hurt.

At 4 pm, I got tired of waiting and responded, "Shame on you for wasting my time like this. Goodbye".

Today, she wrote that she was having some big problems and that I am a terrible person for getting upset about it.

I am wondering if I overreacted (for personal improvement)? I made this assumption based on her constant poor communication and unreliability.

Update: I have got so many helpful replies. It's Probably best not to reply anymore to avoid wasting your time.