To be completely honest, since your boyfriend is the fish expert I think you should seperate them before a spawning happens. If your boyfriend got you hooked on fish then bettas is a good first fish. However, I think you need to start a little slower. As you said this is a new ball game and being good at baseketball doesn't mean you will survive playing football. Get used to keeping adult betta fish alive and then move into breeding.
For now, move her to just move her and don't bother with spawning.