Recap of all relationships in society with the example from Final Fantasy series. The order is based on my preference (this is mainly based on pro-creation criteria). Alpha and beta here means the dominant and supporting role. But I do not judge other people’s life romantic relation based on this list since you have your own reason.
One alpha male – one beta female (Traditional relationship)
One alpha female – one beta male (Role reversal)
One alpha male – multiple beta females (Polygamy)
Singlehood / Widowhood / Divorced
Others (Same-sex relationship)