I feel that if on a break, it's best to clear that up with your partner before hand. If this is going to be a considerable amount of time, then you have to make it clear to one another that dating is ok. I for one, disagree with seeing someone while on a break, but that is because the break my girlfriend chose to have lasted a week until she decided to break it off completely.
As far as cheating goes, DEFINITELY not a huge one in my books although I feel like a hypocrite, because I have cheated once, but that was many years ago and I'm still not proud of it. But I think the best way is to figure out how long of a break the person wants to take, if there will be contact and is dating allowed. Those are just my thoughts.
Cdoc
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