It seems like manipulating to me because you know that she doesn't want to talk about that kind of thing through email.
That is the boundary she set.

Yet, you told her your feeling and are now upset and having feelings of shame because she didn't respond to those felings. So you are trying to manipulate the boundary and move it by essentially telling her you are in distress because she won't answer your email. But you knew she wouldn't answer it when you sent he email. And by telling her you fel shame it seems like you are tryin to play on her feelings of pity for you, or guilt that her lack of response is making you feel shame!!

You know your needs cannot be met through email, yet you are still trying to get them met through email.
That is why I see it as manipulating.