"There is nothing stranger than to love somebody who is mad, or who is intermittently so," highlights the challenging and complex nature of loving someone with mental instability. Such love involves emotional strain, weight, and anxiety as one navigates the unpredictable and confusing behaviors of the loved one.
"The weight, the strain, the anxiety is a heavy load to bear – if only because among these confusional states and hysterias loom dreadful probabilities like suicide or murder." This passage emphasizes the dangers and fears that come with loving someone experiencing mental health crises, which can threaten one's sense of reality and stability. It reveals how fragile our grasp on reality can be in such situations.