LoL, I remembered when I watched this movie a couple years back, and simply gave up on it midway.

_{It's no that it was a bad film just... I found it boring, visually interesting, and a little cringe at times}

It certainly is not your classic Zombie Apocalypse* type of movie that's for sure. One thing I enjoyed was the uniqueness of the plot:
Zombie loves girl buy kills girl's original boyfriend, then starts having memories of their past.

Lol... Interesting indeed...