Responses
It's definitely this!
https://www.mangago.me/read-manga/i_only_need_the_duke_s_child/
Yesss! This is the one! Thank you so much
(づ￣ ³￣)づ
Saw this on a reel on youtbe, the fl reincarnates and marries her cheating husband because she wants to reunite with her son. The husband is typical black haired brooding josei ml and the fl has light blond hair and deep blue eyes. The son had the father's hair and the fl's eyes.