Did anyone like the character of 'Sara'?

Martina Gedeck's character Sara is supposed to be charming and it is not all.

I feel sorry for Heino's character. He's the only one that makes me "kinda" like this movie.

WHo would choose to invite all the men in her life without warning her new man?

SPOILER ALERT
And are we supposed to want her to reunite with her husband? Even though she didn't have sex with another man, she chose to get pregnant behind his back...and doing it so he wouldn't feel bad in comparison with the others does not make it right.

I didn't hate the movie as one of the reviewer did (I hated "CACHE" more...but nobody criticizes french-artsy-cinema). Anyway, does anyone think different?