Board Thread:General Discussion/@comment-4680574-20140324180244/@comment-4311395-20140404000758

While it is true that some mamono (such as the Cyclops) don't seek life long relationships, the fact that sex was exchanged for a weapon makes the situation seem more along the lines of a business deal or equal exchange than an actual relationship. So you can't really consider the Cyclops to be cheating.

At any rate, mamono who do seek "actual" husbands are doing busy doing it with those husbands to even think of cheating on them. After all, every second they would spend looking for another male would be another second they could be doing the man they already have.