What does she mean when she says she isn't sure she wants a serious relationship?

nullpointerexception
I have been going out on dates with this girl for just over a month and have been getting very close lately. She is very affectionate (heavy petting) when we are alone together. Her affection in my opinion is deeper than just physical. She seemed to really enjoined spending time with my new nephew (offered to help when I baby sit), is going to look at houses with me and asks about my work and what I have been up to.

She says she doesn't know what she wants though. She has mentioned that she wasn't looking for a long term relationship. I told her that it is something that I wanted but that she has all the time she needs to find out what it is she wants. She shouldn't feel any pressure.

What could she mean by this? Does she like me? Is it likely that she might become interested in a long term relationship? What can I do?

Who said guys were the confusing ones :-).
What does she mean when she says she isn't sure she wants a serious relationship?
2 Opinion