Your close friend of 15 years lost her mother four months ago after a 9-year Alzheimer's decline. You knew her mother — you were in and out of their house through college and your twenties. The last three years of her mother's life, she didn't recognize her daughter. Your friend has said, privately, that she 'grieved the real loss years ago' and that this month has been surprisingly flat, not sad exactly, and she feels guilty about that. You're emailing her — not for any occasion, just checking in. 150-220 words. Just the email body, no preamble.