Death comes to us all; it doesn't make us welcome it, not devastated when it does. Even if she doesn't come here, she lives on in your memories of her.
Don't feel guilty for that, dearest. I feel as if, from the way you've described her, that she would have wanted to make sure that you and Shepard were safe, that you survived. You did, which means that you should live in a way that honors her memory.
If she does, you have to introduce us. I haven't met Dr. Solus yet.