if the male does pair off with a female they will most likely chase and probably kill the other one, you can't keep them in trio's like with some other fish, and also just because you have 1 male and 2 females doesn't meen they will ever pair off, the male has to find a female that also wants him, and they pair off, normally for life, i had 6 assams with 2 big males and the rest females and none paired off so i got rid, good look with them though, but if you do see the male and a female chasing the other female than remove her before she gets hurt.
Dave