Elizabeth Hein's novel How to Climb the Eiffel Tower kept me up to 3 a.m. the other night. In it a first-hand narrator wittily and with vulnerability describes her successful battle with cancer as a young career woman. I wouldn't have expected to be swept up in the topic, but she has a deft style and kept me reading and turning pages. Elizabeth has honored me by inviting me to contribute a Guest Blog, which you can read here. I took the occasion to write about relationships in the context of the...