Seems like it's kind of missing the point though. Being capable of and seeking out and enjoying sex with men makes them bi, not the frequency of gay sex they have or how often they seek it out quite frankly.I will say a lot of bi guys aren't bi just horny. If they stop watching porn and wife gives them sex I bet they wouldn't touch a man
If someone is in a monogamous committed relationship, gay, straight or bi and they have a healthy sex life. They won't touch other guy/girls too. Not sure that means anything in regards to sexuality, just self-control.
There are plenty of sex-less older men in relationships who don't seek out sex with men "to scratch an itch".... because you know, they are not interested in sex with guys. Go figure. That's what prostitutes are for.