Help me i really like her ,Should I call her? and if i do what am i going to say?

i have been going out with her for more than a month now, this saturday we were supposed to go out but when i called her in the morning she simple said I CANT, she woudnt tell me wut was rong , i insisted , so finally she said look dunn hate me but i think we are not at the same page im not ready for all this seriousness, i mean if u really like me as much as it seems like then there is a problem i mean like our telephone calls and all the i miss u n i want u n stuff im not there yet its only been a month blah blah... she is basically sayinn taht im too obsesive or sth along those lines, shes kind of right coz i have paid too much attention to her lately and tahts never good but truly i want a casual relationship too, i have so much other **** in my life but unfortunately coz of the things ive said it has seemed to her that my life revolves round her and... I tod her ok lets talk bout this sometime in person and we agreed and thats it. but she hasnt call ever since...