Ok, dovii are not your typical Cichlid.. And breeding them takes patients. First divide 100% for at least a couple weeks maybe more. Give the female more room, couple places to hide or breed. Give the male one place to kick it but keep center of tank empty except for maybe some flat rocks up against the divider. You'll want room to observe them responding to each other through the divider.
Once you decide to pull the divider, there will be more aggression between them than usual pairing. They take and give more damage than the average Cichlid. Once they pair, you are 80% they will bond and be good undivided for a long time.. Months/years. But you'll also notice that females will end up being the aggressor from then on. So most people will divide them again once they see lip locking and fighting. But know this, the female will not accept the male unless he proves worthy. If he is loosing and constantly retreating then Yes divide them. Only time to divide with dovii usually is when one consistently runs and doesn't protect itself against the other. Now since they're so tough with the pairing ritual. I tend to break up the pairing attempts into several tries. Allowing visits undivided starting at 20-30 min and extending each time. This gives them time to build respect for each other without killing one.
Thanks for the detailed reply, that helps a lot. Will give this a try and see how it goes, will update if they pair up or spawn together.