That is only natural to lower your standards as you get older and your ideal criteria for a significant other isn't met.

The best example is that woman creeping up towards middle age(around 40) and the biological clock to have a baby is starting to sound like a ticking time bomb.

At a younger age she wanted Prince Charming. Now she will settle for a frog's donor eggs.

Or even worse she will fuck somebody who looks like Smartt just to get impregnated.