Long story short, been talking/seeing a girl from work for around 3 months. Im 25 and shes 22. We have had sex and everything was great. At first I told her we should keep things not serious, but she would always drop hints that she wanted to be more serious and joke around about how I only gave her 1 day a week. WEll, about 2 weeks ago we had a convo about how I really do like her and would like to be serious, everything was fine and we were both happy with the conversation. Then, in less than a week she started saying she didnt want to feel pressured and that she all of a sudden couldnt be in a relationship because she has to work things out in her own life. She broke up with her ex about 7 months ago, the guy basically bought and engagment ring and then dumped her. Shes mentioned shes scared to get hurt again and she wants to stop associating all guys with her bad experiences.
We went from seeing eachother atleast once a week to us hanging out once in the last 2 weeks or so. She sends mixed signals telling me Im perfect, so hot, awesome in bed and that if she had a boyfriend it would be me. But she isnt persuing doing anything with me anymore, its always me now. I have backed off in the last week and stopped calling and texting as much to give her some space and make her start to "miss" me. She said she wants to take things slow and doesnt want to lose what he have because she told herself not to get in a relationship she doesnt see going anywhere ever again.
I used to be able to call her whenever and not feel worried that I was gonna get blown off or turned down to do something. Now, Im scared to even call and ask to do something and its driving me nuts.
My question, what would make a girl who seemed totally head over heels for you and persued the relationship first, and then when I agree to it she totally turns it around?