Are you sure they are male and female?
I had two pairs in each of the groups of six that I raised. They're much like other cichlids -- there would be courtship displays where the fish would show off for one another, colors would change, fins and bodies twitching. Then they'd pick out a spawning site, usually in the top half of the tank, and defend it from all the other fish. After a few days I'd always find eggs. Both parents do a good job of chasing off outsiders.
If one of your fish is ragged and beat up, you may want to put a divider or something in until it heals and has a chance to rest. If it gets stressed it could end up sick and not eating again. It doesn't sound like the dominant fish is going to lay off any time soon.