Getting involved with someone else during a break: Cheating or Not?

BirdofParadise
It appears to me that people who get involved with someone new when they are on a break with their current boyfriend/girlfriend don't consider it cheating. On the other hand, people who's boyfriend/girlfriend have gotten together with someone else during the break say it is cheating.

My question is:

If someone gets involved (in any way, be it dating, hooking up or having sex) with someone else during a break is that cheating? Has this situation happened to you? If so, were you the possible cheater, or the bf/gf?
Getting involved with someone else during a break: Cheating or Not?
5 Opinion