Dumped- no idea what happened

I’m 39 and recently rejoined the dating pool with a pending divorce. I pretty quickly found an amazing person on one of the apps and things were going incredibly well for three months. I’ve never had this type of chemistry with anyone. She had a traumatic marriage and divorce and had told me early on that one day she would probably just dump me. To avoid that, I made it a point of having feelings check ins every so often. The last one was Tuesday of last week after a great date and great time in bed. We talked a lot about what partnership means and I implied that I was in love with her, which she seemed to take in stride, though I knew she wasn’t ready to say it back. On Saturday, she introduced me to her cousins and we went out to dinner with one of them and everything seemed great still. Texting was normal on Sunday. I was planning to go to her house yesterday.

Then all of a sudden yesterday afternoon she dumped me out of the blue. She sent one message that she doesn’t want to string me along while trying to develop feelings for me. I responded asking to talk about it and then left a voicemail on my drive from work (just asking to talk- I’m more in shock and sad than angry). She eventually sent one more message saying she tried but couldn’t develop feelings.

I know her trauma makes it hard for her, but she told me many times she felt safe with me, that I was helping her trust again, and it seemed pretty obvious to me that she does have deep feelings for me. She bought me an expensive steak and sweatpants for my birthday and our snuggles in bed were long. She often fell asleep on me and she said I’m the only person she’s ever felt comfortable enough with to sleep on. We had talked seriously about taking a trip and lightly about moving in. Here’s the thing- I think this was the person for me. She laughed at everything I said and the times in bed were absolutely electric. I sent one last message this morning and don’t plan to contact her again unless she contacts me.

Is there any way that she comes back around? I think she has feelings for me and is afraid of them. Or did I screw up by saying what I was feeling? After a failed marriage I really thought I had learned some lessons about communication but I guess not.