1. Calm down first: Don't make a decision when your emotions are out of control, or you may regret it. You can calm yourself down for a while and think about your feelings and thoughts.

2. Be honest: I have decided to break up, so I'd better tell my decision directly and try to express my reasons honestly. Express your worries and disappointments, but avoid blaming and attacking each other.

3. Respect each other's feelings: No matter what you decide to do, you need to respect each other's feelings and opinions. Listen to each other's thoughts and reactions, and understand the position as much as possible. It's hard to accept the decision and don't give up your ideas easily.