Can I get divorce as my wife is not interested

I am INDRANIL GANGULY (38-yrs), live in Calcutta with my wife and 5 years old child (boy). I’m a Management Accountant. My wife ex model and presently groomer and occasionally do some ad / modeling related work. I have 8 years marriage life and we have very good relation so far. Trusted, loyal and still we are very much crazy to each other like honeymoon phase. My wife loves me more than I love her. I the time of marriage I was 30 and she was 27. Recently I came to know, my wife had six years affair with a boy before marry me and were madly love each other and developed ultimate relation. They did some modeling assignment together. My wife broke up the relation with her fiancé because that guy develops multiple relationships. She confesses her relationship and says sorry for everything and wants me in her life and request me to never ever raise any further doubt or questions about her past as she want it all wiped out from her life. She is super happy with me and completely forgets her