The Cheat — Cherime MacFarlane

Life and Love in Alaska, Volume 1. Please note each story of this series is a short story.
Francis labels herself as "fat and forty." How in the world she came to be living with the guitar player for a popular Alaska band is a wonder to her. Monte is a groupie magnet, and Francis is waiting for him to tell her it's over. The text message she gets from him after he returns home from a weekend gig, sets off a major fight when Francis accuses Monte of being a cheat. Monte did something, but what?