Original sentence: In more recent and emancipated times, it is more likely that the mistress has a job of her own, and is less, if at all, financially dependent on the man.Today however, the word mistress is used primarily to refer to the female companion of a man who is married to another woman; in the case of an unmarried man it is usual to speak of a "girlfriend" or "partner
Edited sentence: In more recent and emancipated times, and in modern society,it is more likely that the mistress has a job of her own, and is less, if at all, financially dependent on the man.In todays world, women companion cllssified under this category may be supporting their male friend , rather than dependent on them.The woman comapanion of married man, is much more an emotional need rather than sexual.Today however, the word mistress is used primarily to refer to the female companion of a man who is married to another woman; The companion could be a long term friend and having a sexual relationship, but not the primary reason for relationship; in the case of an unmarried man it is usual to speak of a "girlfriend" or "partner