Seems like we have an unreliable narrator (a la Girl on the Train) perhaps following/stalking her ex-husband's new fiancee in the hopes of sabotaging the relationship. The Nellie character is bland and I'm not really sure I care much about her right now. The narrator though I could tell I'm going to have a lot of trouble following because she really does sound like a train wreck. These were pretty slow moving chapters with the exception of the opening, so here's hoping things speed up dramatically.