Is Having an Online Wife Adultery?

Some people are considering it anyway.

Confusing? It should be. Turns out that Ric and Sue's marriage is on
the rocks. She contends that he spends more time online in Second Life, a
virtual universe currently home to 30 million players, with his online wife. Sue
spends her days in front of the television, while Ric is in the other room
running a virtual night club and consorting with his online wife, sometimes for
as long as 14 hours at a time on weekends.

I wonder if having an online wife will actually be grounds for divorce in this case. I think that spending 14 hours on weekends on a game would be a better grounds in my opinion. This "gaming widow" effect will get worse the larger and more mainstream things like World of Warcraft and other MMOPRGs become.