I can definitely understand your feeling hurt about her response (and lack of response in some cases). If she didn't want to communicate with you on vacation, she should not have offered it. If she didn't want to explain her thoughts over e-mail, she should have sent you something saying "This is too much to go into over e-mail" and offered a brief phone call (if that would have worked with her vacation timing--though she did say before she left that you could talk daily if needed) or said you could talk when she got back. Not just left you hanging. You should definitely discuss this with her when she returns.