Sounds like a Final Fantasy reference to me. It's probably not, though.
The point of roleplaying is to have fun and play what you want to play as. There's no right or wrong way to roleplay.
This would work perfectly fine. The character could feel guilty, his feelings pushing him toward helping women in order to make up for his mistake, even if only a little. The character could simply be a chivalric person--just because he accidentally killed his wife doesn't mean he's a bad person (unless you strictly adhere to the "all werewolves are evil" school of thought)."werewolfhumanthatkilledhiswifeduehisillness": im here to save you ladies! (smirk)