I Want Her
Now don't get me wrong i love my wife, but id like some advice on what to do, is it just a feeling or what.
Danny,
One word here: Don't.
Keep it inside, in the fantasy zone and never ever consider doing or saying anything. There are very few things that can go right and a shitload that can go wrong. I'm sure you've heard the advice to not shit where you eat. It applies here.
Do not even approach this woman. If she's your wife's old friend and not yours, she'll toss you under the bus in a heartbeat. And depending on your wife's mood, that could be the last time you see her, the kids, the house, and the bulk of your paycheck. Even if she's not homicidal, it will give your wife something to hold over your head until one of the three of you die.
If you absolutely, positively feel the need to stray at some point, break out your mad money, find an excuse to go out of town on your own for a night, and go fuck some whore in a town at least 50 miles away. In the words of Charlie Sheen: "You pay whores to go away." And I'd add that part of it is to forget your face as well.