5. Knowing something about his past relationships
Sometimes people get hurt and later on they keep remembering what happened to them a few year ago. Your partner might be too jealous simply because his last relationship was not as joyful and happy. What if he has once been betrayed or cheated on? If this is the case, then be understanding and realize that he needs some more time to make sure he can trust you 100%.

Have you ever been in a relationship with a jealous boyfriend? What approach did you apply to solve the problem? Share your experience with us.