Hi Cris,
Another big Aussie welcome to Susan's family. Well, fortunately all the necessary timely advice has been given. So my job is to offer you a seat and take your order, coffee no doubt. How do you have it?
In all seriousness, you have come to the right place. And to a degree it's alright not to tell your wife immediately, until you've had your first therapy session. One you have the confidence in knowing where you are going, you'll be in a position to bring everyone else into your dilemma.
But as Sephirah said, you've already made the biggest step in acknowledging your own feelings. So be very proud of yourself. Look forward to hearing more about you in time to come, but in the meantime, be safe, well and happy.
Lotsa huggs
Catherine