raift: you did not cause the fuss. Your question about crossbreeding has been answered, with a lot of detail, by liv2padl. It is generally not a good idea, because the progeny, with mixed characteristics, have a tendency to get released into the hobby, and pollute the bloodlines of various native species.
If your fish want to pair off, then let them, but don't try to save the eggs or fry. Nature should then take care of the issue.
If you are looking for a satisfying cichlid-rearing experience, I particularly recommend Heterotilapia multispinosa, which is a great, attractive fish that is easy to breed and yet much underappreciated in the hobby.