How do we know he doesn't masturbate as well?
Honestly? Regardless of the proper English, this is really out of lines to tell anyone that the frequency in which they want a sexual partner is some arbitrary wrong number.
Anyway, this is 2019. How did they ascertain in 3 years that men who ejaculated X times have X % less of prostate cancer? Sound like a bogus study.
But anyway....here is how I would more write it.....
(not boy) complained
in a Chinise medical forum that his girlfried accused
him of being uninterested in sex with her
. He stated "I make love with her once a month, yet she still says I show little interest."
Honestly I don't know how I would write that last part, as the object in having sex is not to keep score of how many times a month to ensure
how much would "make you healthy" A worked out prostate does not automatically equal good health all around.
Sounds like both of them need to look for partners they are more sexually compatible with.