Male possessiveness

I am a software engineer,Male, 31 years old, i am married 7 years back, i have a kid (boy with 6 years old). I love my wife very much.I cant live without her. I am more possessive in nature. She understood me well and living to my expectation.
8 months ago i met a girl of my native, she was my colleague for two months, then she shifted her job to another company, she was very close to me, after she left the job, we had phone contact, some times once a month we meet in beach,sit and talk for sometime and leave.But we communicate every day. She is unmarried, she hates love, and she loves her family very much.
Neither of us have sex feelings with each other, we are just friends. MY WIFE DOESNT THAT WE HAVE COMMUNICATION, MY WIFE IS ALSO VERY POSSESSIVE, so i have to hide my friendly relationship.
My friend is very frank and open minded person who speaks well with others, she has plenty of boy friends during her college days (only friendship, no sexual feelings or some thing like that). She used to speak with them over phone very often.
But now a days when she says that she had spoke to her
college friends, i cant bear it.I had asked to forget
all her boy friends, she says that she avoids them now a days, rarely she speaks with them, but i know that she is still speaks with all those boys.i well know that she is going to marry a person whom her parents wishes to do so.
I cant control my possessiveness.I love her so much.
she knows that, she to loves me more, but she says that
her college friends are known to her for more years than me, so she cant stop completely speaking with them.
I can understand that, but when she says that she spoke with her college friend,i cant bear, i feel like crying.She says she cant stop speaking with them completely, i ask her to stop completely. She says that i am already married so i cant take more rights
over her.
What should i do now? Please suggest me.
till now my wife doesnt know that i have friend who is so close to me. I love my wife the most. she is more important to me.I cant have a better wife than her.
But this girl friend is the first one for me,
she too likes me, i too like her.
I am more possessive towards her too...
what should i do now?

You have no right to control your female friend. She has a right to talk to whomever she wants. See a psychotherapist to get help with your emotions. When I work with patients who have problems similar to yours, I make them feel all terrible feelings of jealousness. After a few sessions they are usually cured.

Treatment of jealousy.