Modern Women choose a sexual fling over a stable relationship

I was always taught never to judge a woman, but there are several days every week where I question the mental state of women in modern society. And no, I'm not talking about their decision to cut off all their hair, or even the fact that they don't shave their armpits anymore. No, what has me so baffled is how easily these women are giving up on relationships for a sexual fling.