Naomi instructs Ruth on the customs of Israel and what to do. She goes to Boaz After he has bedded for the night and lays at his feet as a sign of submission. When he wakes in the middle of the night and notices her there, she informs him that he is her kinsman-redeemer and asks him to take her as his wife. Boaz is amazed at Ruth's submission to the customs of Israel. She could have sought a much younger man, but Ruth honored tradition and she demonstrated remarkable integrity. Ruth's character would make her attractive to the man. Boaz also had demonstrated piety and grace to Ruth, traits that would make for an excellent husband.
In seeking a mate, the character of the person should supersede appearances. Character lasts but looks can change or lose their influence. The character traits of the person will be the glue to keep the relationship successful.
Our methods of finding a mate and entering into the covenant of marriage often don't prepare us for the commitment required or lead us to people of godly character. We are instructed to focus on character and our own development of the character of Christ in our lives. When Christ is in us and is allowed to be preeminent, our mate will have the confidence that he/she has someone who is of great worth in their lives.
I believe that if we in our culture held marriage high and offered training for our young to know how to select a mate that we would certainly see a rise in contented couples but also a rise in security for families as parents demonstrate committed love for their children. We have far too many children who do not have the involvement of their fathers on their lives and far too many mothers working hard to provide what the father has not. It skews our view of marriage and of roles of the husband and wife.
Ruth finds a man of godly character and we can help our children to recognize the value of character in every relationship they have. We too can be that model of godly character in each relationship we are in; mother, wife, employee, Christ member, sister, etc.
May God richly bless you as you seek Him and as you serve Him.