3. Learn to grow and change together
Couples need to be able to grow, in their right, and together. Everyone needs new challenges and new opportunities, so pursue those together and no one will feel the need to go elsewhere to broaden their horizons.
4. Make staying faithful a no brainer
The best defence against cheating is to make the relationship so great, that your partner has too much to lose by cheating. Communication is the key here, talk to each other about what you want, and make sure that you take account of each other’s needs.