It sounds like you're referencing a specific story or title— "WatchYouCheat 24 03 28 Summer Col Wash My Load ..." —which isn’t one I recognize from mainstream or published fiction.
If you’d like, I can help you write a inspired by that fragmented title. For example, here’s a short one based on the possible themes of surveillance, betrayal, summer heat, and hidden guilt: Title: Watch You Cheat WatchYouCheat 24 03 28 Summer Col Wash My Load ...
She found out on March 28th, not through a confession, but through a forgotten smartwatch synced to her tablet. A message popped up: "Can’t wait to see you again. Last night was perfect." It sounds like you're referencing a specific story
The contact name: Summer Col.