non-married

Dear Respected Sheiks & ScholarsAssalamu ai laikum, ORBALHUMDILLAH THANKS TO ALLAH, WE ARE HAPPY FAMILY FROM PAST 10 YEARS WITH 2 CHILDREN,  MY WIFE BEFORE OUR MARRAIGE HAD ANOTHER MARRAIGE PROPOSAL IN OFFING WHICH COULD NOT RESULT IN MARRAIGE AND THE BOY OF THIS PROPOSAL ON PRETEXT OF MEETING HER ALONE  FORCEFULLY PERFOMED ORAL SEX ON HER I.E  MY WIFE (BUT NO SEXUAL INTERCOURSE). MY WIFE WAS NOT KNOWING THE SERIOUNESS OF THIS SIN UNTILL SHE REALISED 2 YEARS BACK THROUGH SOME ARTICLES AND SINCE THEN SHE HAS BEEN FEELING VERY GUILTY & REPENTING FROM THE DAY SHE HAS REALISED, BY BEING NOT  ABLE TO COME OUT OF THIS MENTAL AGONY, SHE CONFESSED THIS SIN IN FRONT OF ME ONLY 3 WEEKS BACK. MY QUESTIONS ARE 1) IS THIS COMMITED SIN A ZINA OR NOT ? IF IT IS ZINA THEN WHAT IS THE PUNISHMENT & REPENTANCE ? 2) WILL THIS SIN EFFECT HER FAMILY & MY FAMILY AS HER PARENTS (MY-IN-LAWS) ARE SICK ?JAZAKULLAMOHAMED SHARIFF