Akshay, You already have succeded in seducing her to the extent that she have let you suck her boobs, grope her body & even gave handjob couple of times. Stll understandablly you want more. But the situation is catch 22 .She obviously being married will always think of her reputation first.
All you can do now is to start ignoring her . Do not acknowledge her presence even. No eye contact. Show aloofness . Let her wonder what has happened to you . Also while she is present you can pretend to be talking with some giel intimately But do not go overboard. Stay within limits and let her curiousity build .
She will take initiative, And next time you get intimate do not forget to tell her how much you missed her, love her & praise her beauty n body. Remember only you would be responsible for the consequences of your actions.