 If you liked
Kimi wa Pet
|
 ...then you might like
Maison Ikkoku
|
Both mangas are centered around an adult mature woman, who's focused in her job, and along the story is divided romantically between a successfull older husband material man and a younger boy who's not exactly succefful in life (but gradually grows up).
Also both tells you their day by day lives and are a smooth nice read.