Why are some wives such jealous types? How do I handle the situation?

My wife is so much jealous without any reason, even I love her only , she ruined my whole life by her behaviour,, sometimes she shouted and cry on some my ladies customers too , i know why , because they talk me wisely and she feel jealous.
How to cope?
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Well I am agreed with users you find attractive but Here are so many you did not mentioned who were deserved. Like @Nikki1989 and @Abbycado and many more here
Why are some wives such jealous types? How do I handle the situation?
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