I would leave out the "if you want to talk..." but that's personally. I always think, they know where you are and the fact that I am dropping a line says you can get back....
Hopefully she responds with a TY or whatever, then you can open the dialoguea bit more.
Dip your toe, these are tough times for W and I always think we shouldn't lose that piece of us that cares in times like these no matter what the sitch. Like AS, it's simply decent and loving to do so. Just remember to be kind to yourself as well, Lefty
