system
A chat on subreddit /r/NoStupidQuestions
human
I don’t find that men believe this about women. Men are happy to find a woman who “doesn’t know how beautiful she is,” etc.
gpt
I think men with little relationship experience want this until they realize what it actually entails. Reassuring your SO that you find them attractive and love them is endearing at first. 

But no one wants a long term partner who constantly thinks you’re cheating on them, won’t let you have opposite-sex friends, is constantly seeking the attention of others to confirm their self worth, and has a hard time believing that your feelings are genuine.

A lack of confidence is, imo, very unattractive in women. A wavering confidence once in a while is fine, but you should have yourself held together for the most part.