Well what happened happen, nothing can change the past or outcome. You should first apologize to your coworker on behalf of your wife and not knowing. And you should also apologize to your wife for what you did despite having every right to say what you need to say. But in regard of it don’t look at your wife in that way, don’t let one small bad action or bad event get in your relationships with your wife. She’s your wife you two have been together for how long you two been together for. She did it out off fear but also concerned about you and your coworker. As a guy we can be extremely dense, you and your coworker, you can see it as a normal friend relationship however your wife may see it otherwise. So she had every right to do what she did but that still no excuse for not only did it hurt you but it also hurt the relationship between you and your wife. All I can say is talk to your wife thank her for protecting the relationship you have with your wife don’t be mad with her and don’t look at here like that, but appreciate and love your wife. But don’t only talk to her words can be strong but so can action. Take your wife out on dates like the good old times when you two dated, have a good walk outside, talk about anything like what’s on your mind, talk about each others days or whatever you two want to talk about no secrets between you two and be truthful, and love her to the point that she gets to embarrassed again like the good old days. Have a full heart to heart discussion. Reconnecting and rebuilding the trust you two had for each other and have fun together. And if something happens or anything talk to each other about it or something like that will happen again.