Does excessive jealousy lead to domestic violence?

Jealousy is not love. The husband or boyfriend who calls the office to check up on a partner at all hours, or makes her break off a number of friendships, with both male and female friends, because of his jealousy soon makes her afraid to cross him. Soon he may unjustly accuse her of flirting with others or having affairs. And the scope of exclusion may include relatives, friends, neighbors, or co-workers. According to psychologists, jealousy masks an underlying insecurity that seems part of the personality of the abusive man.