hahaha wow... confusing betta!! I've only ever had submissive girls. BUT.... there are some females who are more... rowdy? vicious? bullies?? lol. Leave her/him there for about a week. or even better yet, condition the fish as if you were to breed her... 1-2 weeks without other fish in her sight, fed well, clean water... then put her next to a male, even give her some of his water (horomones!!) and then see what happens.