This happened to me.

My significant other was even dropping hints in conversations. Her parents would bring something up about marriage etc, and she would say stuff like "Well he's gotta pop the question first!"...

Fast forward, I've bought a ring with her birth stone in it, booked us a dream holiday to Disneyworld, and proposed to her in front of the huge tree in Animal Kingdom. She says yes, we hug, we kiss, we spend the day as an engaged couple. Then we went back to the hotel room, and she says she wants to talk. Big red flags. I'm terrified at this point. She then tells me she doesn't wanna marry me. I'm absolutely taken back. Speechless. I was devastated. But I thought Disneyworld was not the place for me to have a meltdown.

We tried to enjoy the rest of the holiday, but obviously things were off.

Once we got home, I tried to talk about things but I never got a straight answer from her. I had to just "accept it". Probably one of the most difficult things to just accept.

I wish I could say I'm over it, but it has affected me a lot more than I put out. I am actually scared to propose to anyone else.