You made the right decision to walk away.
As a female, I am ashamed by how some women behave. I know we have different traits but there seems to be an expectation that guys will do exactly what they want.
It's best to move on and put it down to experience. That's a weak statement I know, because sometimes we need to understand why someone behaved like that. Look at it this way, if you'd bought a house together then she would have found something else she wanted. And the list goes on....