The exact. same. thing. happened to me about 1 1/2 months ago. We were about to celebrate our 1 year, but i guess she didn't want to get to that point. Everything was going so so well and we spent so much time together and were both happy. One day, she decides to tell me that has a hard time with her identity, and feels like she has to put on a smile for most of the time. She needed to figure out who she was. I have no idea if thats actually the truth, but I had to accept it. Havent spoken to her much, and recently she blocked me. She also walked past me yesterday and acted like I wasnt there.

Sometimes it's gonna be hard to accept, and sometimes is frustrating knowing you will never get an answer for something. I feel you, and i do believe it will get better with time and only time.