system
A chat on subreddit /r/NoStupidQuestions
human
There's a biphobic fear among both straight and gay people (far from all, of course) that bisexual or pansexual people are more likely to cheat, since they're attracted to more than one gender. Among some straight people, there's also some homophobic disgust at the idea of one's partner being attracted to the partner's own gender.
gpt
Where does the fear come from though? Everyone is attracted to more than one hair colour. If they're in a relationship with a brunette, do they feel they're missing out on dating a blonde? That's how bisexuality works.