Welcome to the forum, Mariah and I am sorry I did not reply to you sooner. Don't separate them. We, as humans, cannot begin to comprehend the degree of closeness a bonded pair of parrots has... They are not like us -fickle, easily bored with our current mates and always looking for greener pastures- to them, their mate is the alpha and the omega of their existence. So, please, don't do it, they would suffer if you do.
You don't say how long you've had them, what diet they are getting or what light schedule they are under and all those things are important points because as long as they are kept at a strict solar schedule with full exposure to dawn and dusk, not free-fed protein food, allowed flight and, at least, six hours of out-of-cage time, you should not have a problem with them becoming overly hormonal -which is, by itself, the reason why people think that bonded birds are more difficult to handle than single ones. I actually strive to get all my birds bonded to another of their own species... I get them DNA'd, look for potential mates and do my outmost for them to bond to each other, and it works great for them and for me!
The only 'problem' you mention is getting them back in their cage at night but that is never a problem if you don't free-feed protein food and keep them at a strict solar schedule because, as the sun goes down, they will gladly go into their cage to eat their protein dinner and find their roosting perch - all on their own and without you having to 'convince' them