Male Kribensis Help Please!?

I have a 36 gallon with 6 danios and two kribensis. I have a female and a male. The female comes out alot more often and i see her alot more than i ever see the male. The male is much bigger and will come out every once and a while, about 80% of his time hiding behind rocks, plants, and flower pot. The female does her lil shimmy dance, I have only seen him do it one time! Does he not like her do I need to get another female bc I read they like to pick the "biggest" female. Or would it be ok to get another small west african male cichlid that might help but a different species just to see if he reacts or another male or the same species? I just want him to come out he's so purty even if he isn't flaring i just wanna see him D: