It’s complicated

When Haru finds her husband fooling around with other women being fooled for years she immediately files for divorce. On the night of the discovery she has no where to go and wanders aimlessly and ends up in a park near her apartment. A mysterious man sees her crying in the rain and rushes to her aid. They quickly become friends and that is the begining of her new life. She runs into many obstacles while trying to start over. Why does life have to be so complicated for Haru?