Hi Sealover and Welcome to the Swingers Board!!
First of all, I agree with VegasLee all the time! He never gives faulty advice to anyone and listening to his suggestions is always a good step toward a healthy swinging relationship.
Jealousy is an issue that can really destroy a relationship ~ in or out of swinging. Do you know why you're jealous? Do you feel she'll run off with another man? Do you think she might fall in love with someone else? You'll never know how you're really gonna feel until you're in the thick of things and you see your wife in action, in real life.
Also, you admitted you told an untruth to your wife and that's not good, either. You have to be completely honest with your feelings and desires. I know it took us a long time to get there, and it was out of fear that we don't want to lay out our thoughts or feelings for fear of being hurt or rejected.
Most times, the fantasy is best kept as a fantasy. Reality can sometimes turn around and bite you in the ass when you least expect it.
Fortunately, for all of us, these swinger articles are posted here to help everyone who are just getting started. Please read those articles listed and there is also a list of "DOs" and "DON'Ts" that are helpful for guiding you.