WHAT?
Let me get this straight. You've cheated, looked at porn, and almost invited another man into your bed. And now your wife is the bad person.
Try stepping into her shoes for a second. You try for 14 years to be a good christian spouse, only to have your spouse cheat, lie and fantasise about other men and women. I bet she hasn't been getting much satisfaction from that. Can't you see that after 14 years of that rubbish, you might decide that being 'good' has gotten you nowhere, and you might as well join your husband in his happy cheating sex?
Except you've conveniently decided that you're born-again and too good for all that stuff, and you're 'shocked' at your wife's behaviour. Well, guess what, buddy? YOU have allowed your marriage to get to this state. YOU stuffed up a LOT. YOU are the one who needs to be working to fix the mess YOU made, not prancing around on forums all amazed and prissy-mouthed at your wife's 'unchristian' behaviour.
Oh... and I realise this is a text-based medium, but I'm extremely bothered by the fact that I can't detect a shred of honest remorse and repentance in your posts. You seem more bemused that she won't 'suck it up' and get on with being a good wife.
Get off the flipping computer, haul your wife to counselling, and get prepared for a long, hard road in which you work at healing your marriage and helping your wife regain trust in you - IF that's possible.