Remove the female as soon as possible after they spawn otherwise the male may very well kill the female.
It is rare that a female ever helps in the bubblenest, So don't risk it!
The male should go back and forth working on the nest and flirting, If he aggressively attacks her I would remove her and try again another time, To many times when they show serious aggression towards one another one ends up terrible riddled, and its not always the female that gets riddled either. Don't be fooled thinking everythings ok,
I just don't feel its worth it and simple try again until they are more passive towards each other and the male spends more time going back and forth from working on the nest to flirting.
I have one beautiful male here now that I stupidly ignored my rule, went to bed and left them,
He ain't no beauty now, She riddled him!
Never leave them unattended, you just don't know