How is this NOT cheating?

http://blog.al.com/live/2011/12/alabama_politician_caught_in_s.html

He moves away, starts impregnating women, and doesn't tell his wife about it?  Sounds like cheating to me. 

I don't know the whole story, but the it seems shady.  If he went through OFFICIAL means, not the Kiwi version of Craigslist, how has he donated to NINE women when fertility specialists recommend not donating to more than FOUR?  And he was having lunch with one of the women he impregnated...aren't the identities of most sperm bank donors confidential?

Man, those Republicans and their unblemished "family values".