What a sad chapter, although very well written.
It perfectly encapsulates the return to a normal life that everyone expects one to have after a loved one's death. Except, friends soon forget, and the person is left to continue to mourn alone. My sister's eldest son passed away in January. It still hits her hard every once in a while and I try to be always available to listen to her sob. Listening is sometimes all that is required.
I look forward to Lizzy and Darcy's relationship moving forward. Kitty has matured but is still a bit silly--but a cute silly if you know what I mean.