I recently stumbled across this video from an account I've linked before.

https://youtu.be/Wq3o3UeKPpM

It talks about how women have a natural sense of opportunistic love and that they don't love unconditionally but are always analyzing mates to find the best one. This is because they have this natural sense of selfishness because of the need to reproduce which is limited due to them not having very many eggs to reproduce unlike men who have a lot of sperm.

https://www.google.com/amp/s/www.psychologytoday.com/us/blog/insight-therapy/201308/what-do-women-really-want%3famp

Then I found this article which shows that women's sexual relationships die off quicker than men and that they loose interest more often in long-term relationships. Because they have the need for an orgasm due to less reproductive resources they tend to favor their orgasm in a more selfish way.

Any thoughts?