Well, sounds very strange. Haha, he sounds like one of those guys who´s so worried about his appearance...shiney shoes, etc, but not much more!
You said you bought them as a pair, but I´m not aware that you can sex tiny poms. From what you say, it does sound like he´s a gander, with the guarding and high-pitched voice, but seems to be overdoing the preening bit!! Well, lets hope he gets it sorted soon.
As regards the eggs, after a good few days of incubation, if you get a good but small torch, and take an egg into a dark room, and shine the torch up against the bigger end of the egg, it should make it look a bit transparent, and you should be able to see little red veins developing inside around the membrane. If infertile, you´ll just see through the egg, nothing going on inside.