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.
One evening, after he’d fallen asleep, she packed a single bag. She left the smartwatch on his pillow, a voice note queued up: "I saw everything. Wash your own load from now on." WatchYouCheat 24 03 28 Summer Col Wash My Load ...
The contact name: Summer Col.
By sunrise, she was gone. Summer Col could have him. But Lena took the summer back for herself. It sounds like you're referencing a specific story
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 Wash your own load from now on