If his wife is not aware he's sleeping around, it isn't poly. If he's calling it poly to justify what he's doing, it is clear that he doesn't even know what polyamory is himself -- because he's obviously already told you his wife doesn't know. He is just trying to get you in the sack. I'd stay far away from him. He's a liar and a cheater. And he seems a bit stupid, too.
The world opens up... when you do.
"Oh, oh, can't you see? Love is the drug for me." ~Bryan Ferry
"Love and the self are one . . ." ~Leo Buscaglia "