Libras are natural lovers and pacifists, Mckean says. They're symbolized by scales, so balance is important to them and having a good relationship is part of that. If a Libra cheats, it's because they're seeking to fulfill what they feel they're not getting from their partner in the relationship. They will feel horribly guilty about cheating, but in order to keep the peace, they will do their best to hide it from you.