There is no need to marry as she got evrything wat one could get in marriage. She is very much contented with what she got all these days.Her desires are completely fulfilled and she does not want to marry as she got evrything wat one could get in marriage.
They both can do all the things of a couple without getting married except making children. Marriage is just a certificate in India to make children. In other counties no need of this certificate to make children . its optional.