Asian movie I saw involving a woman forgetting everything including her husband.

Can't remember the name...? I saw this movie a about a year ago on youtube, I found it it by accident. It was this sad and amazing love story about a girl who meets this construction worker, they date, fall in love, eventually marry and then she starts losing her memory. (Early Alzheimer's) I can't for the life of me remember the name of it, but it was a foreign film in what I think was Mandarin with subtitles. Any one know what movie I'm talking about and the name?