What is the most heartbreaking thing for older single women?

It's not being urged to marry, nor loneliness, but: after countless blind dates, finally meeting someone satisfactory, yet he chose a girl who is far less qualified but younger. She lowers her standards again and again, but he still doesn't see her. She thought that as long as she was excellent and proactive enough, it would work. In fact, men care a lot about age — this is an unchangeable fact.