What I found is that the more orgasms a girl has, the less likely she will stay with you. Why this assumption?

Chad does not care about a girl's orgasms. He just pumps and dumps, leaving her unsatisfied and craving for more. She will complain on reddit about what an asshole* he is but secretly she enjoys being sexually frustrated and horny the whole time, while somebody with power who doesn't take her seriously is treating her badly for his own pleasure. That way she might even come much easier if enough sexual desperation has accumulated over time.

If a nice guy makes her come everytime he has sex, she will lose interest in him because she thinks that a people pleaser is not a good choice from an evolutionary standpoint. She will be bored in the bedroom and look for other guys at the same time, who do not care about her multiple orgasms, finding her gspot or reading romance novels for women

*Being an asshole doesn't mean being a total asshole who doesn't know what a clit is

Here is a source about female orgasm leading to heightened testosterone which leads to promiscous behavior in women.

many studies have shown increased testosterone in women after sex

https://www.chatelaine.com/health/sex-and-relationships/five-unexpected-health-benefits-of-orgasms/