Should I tell what I know?

Sometimes it´s tempting to shield your partner from painful truths - that a friend is talking badly about them, for example. However, knowing the information and not sharing it is almost always worse than shielding. Your partner is bound to find out in another way, and the other way might be much more painful than if you told them yourself in a proactive, constructive manner. You are the best person to know how to reveal information to your partner, and can choose a way that will be easiest. Other people would not be so caring, and could cause a great deal of harm.