Good. Letters are a wonderful way to present ideas to another person to get them thinking.
Be sure to talk only about yourself, and how you feel about things. Let her talk about herself. If you talk about her then it feels like you are accusing her of things, and that starts arguments.
You should ask her questions about how she feels so you can better understand her feelings, but don't ever tell her she's wrong to feel the way she does. Everyone is entitled to their feelings. Feelings are not right or wrong.
