Erin loves her husband but Trevor can be so goddamn exhausting. When her friend Kate visits, however, she gets some relief. The attention Trevor gives Kate would worry many wives. In Kate’s presence, it’s as if Erin disappears but she quite likes being a ghost— present but not forced to engage, a witness but not a participant. There is peace in this.  On top of all that, Erin enjoys watching Trevor stumble; his flirts ign...