This probably would be a stalemate for two reasons: Frisk always has his eyes closed and Flowey doesn't need to blink because he's....well a flower.
Frisk is female
Frisk is whatever you perceive him/her to be genderwise (I like to think he's a boy, but that's just me I guess).
(You're not alone on the boy friiiisk)
Yup
Yup