Responses
Are you talking about this?
https://www.mangago.zone/read-manga/onna_no_kigen_wa_itsu_made_desu_ka/
ty!
manga where the wife gets cheated on by the husband, they also have a daughter. While she was trying to get the attention of her husband (before she found out about the cheating), she started going to the gym and met a handsome author and started working for him.