Could this ruin our relationship?

me and my best friend finally started going out a few weeks ago and we had a GREAT thing going, but i think in the long run i have smothered her a little bit and was a little too much all at once. she has relationship and commitment issues and hasn't been in one for a very long time until now. shes told me she loves me and she knows i love her but the last time i saw her our relationship started to get dimmer and she wanted a break from everything including me to think things out and she said her thinking is not going well, but i've kind of pushed her to see me so we can work things out (a weekish later) i'm not anymore but we never talk the same and i don't know... shes really complicated do you think i could have made her fall out of love?