Let’s just look at the letters alone. If she was interested in fixing the marriage she would have at least acknowledged the letters.
That’s what I thought too. Then I read them again after some time. And they sounded like begging and pleading. They sounded like a man desperate to save his M. They sounded like someone who would fall apart and couldn’t handle reality. They sounded like a man you may want to be afraid of... overly emotional, dramatic.