Ruth lived in the times of the old testamentBrainwaveShots Review and she was married to a rich man who owns a large piece of land. But in the story her husband died and she lost it all including the land, she became a widow and lived with her mother-in-law.
Back then in the old society a woman's status is tied to her husband, or her father or her son. Also back then if you were a widow you are considered the poorest of the poor.
Ruth was widowed and all that is left for her is her mother-in-law who was also a widow. Her mother-in-law told her to go back with her father back in Judah so that she could regain her status back.