Severums are not African cichlids, but thats ok, a mod can move this to the New world cichlid section.
Remove the eggs as they are unlikely to get fertilised and the female will then have nothing to defend.
Are you sure the other is male? Could be another female, severums will lay eggs without a male around.
In the meantime if the aggression doesnt stop, you will need to move one of them to another tank or if you have no other tank, divide the tank with a divider.
What size tank is this?
^^ agreed, the minimum size tank for one severum is 75 gallon, the poor things must be squashed and stressed constantly.