My relationship doesn't feel like a relationship?

After my previous relationship ended, I got back in contact with one of my exes. She has always said that she adores me, and that she loves me to death, and that she would do anything for me. So at midnight on Christmas day, I started a relationship with her. We broke up the first time on good terms, obviously. We only dated for a very brief time. But ever since we got back together, we barely talk. She is always busy, and when we do talk, it's usually pretty short. We have a great time when we do, but it's not as often as I would like. We currently live in different cities, but have decided to move to San Francisco next year. I believe this will help things immensely, but for all that she said when we weren't together, I am a bit disappointed that we don't even seem to be in a relationship. It doesn't feel like we are! I am completely lost here. I honestly am very attracted to her and she is an amazing girl, and she says I am an amazing guy, but... I don't know... Maybe the move will help, but I don't think it should have to. My previous relationship was long-distance, and it lasted for over a year and we were very happy. What do you think? Maybe she only wanted what she couldn't have? Maybe my previous relationship ending badly has affected me in a way that I am no longer good at long-distance? I am searching for any answer as to why this relationship doesn't feel real to me. Thank you so much in advance, God bless you all.