I know the feeling well. i am not allowed to email or phone but I can text although she won't reply - just acknowledges - exactly as yours does with the email. It really sucks! I appreciate that she acknowledges receipt but sometimes just a word or two would make so much difference. I feel that my texts are not important because she won't reply. Then by the time I see her she never brings up the things I have texted about. It seems a waste of time for me.