Respectfully, I loathe that term. It's used to turn philandering deadbeats into "victims". Tiger wasn't in a flop sweat waiting his next "whore" fix. With two kids produced, his wife clearly wasn't frigid, or unwilling.
The term is a valid psychological term. I think he really is one. Otherwise, based on what you stated (and I concur), why would he risk all of that (wife, kids) for a moment of pleasure. And just think the risk he put his wife in for diseases—maybe that’s how she found out.