Sympathy for either one?
I couldn't really sympathize with either one. Anna came closest to gaining my sympathy because she at least felt some guilt and apologized for the bald-faced lies she was feeding the poor shnook Alessio. The married dude was a total *beep* - He had no compunction about spending the few euros he earned on a cheap motel room and on a weekend holiday instead of on his family - he was undeserving of family he had (including the in-laws).
I was a bit disappointed anna and the cheater didn't end up together - they deserved each other!