I would write back and tell her that she wrote such a mean letter to you and did not deserve it.And tell her how Lizzie never warmed up to you and how much you still love her.I don't like her for sending you that email.This was very mean and uncalled for.Invite the lady to your home to prove it.I would NEVER let her have that last word.She needs to be put in her place.If it was me I wouldn't take that.I'd be so upset I'd go to her house.