Katsu Curry no Hi

Miyuki is a 28-year-old office lady who decides its time get serious about marriage and dumps her amateur actor boyfriend of two years. When none of her matchmaking dates work out, she randomly writes her scattered thoughts inside a public notebook at a reading cafe. Later, she finds that a man left a sharply-written reply in the same notebook, and they begin to converse in this way.

(Source: Anime News Network, edited)