My wife is concerned about a work trip that I'm going on.
Why is your wife concerned about your work trip?
She doesn't think she can trust me to behave appropriately on the trip.
If your wife is concerned about trusting you, you need to assure her that you will not do anything to put your marriage in danger.
She knows that I am a marriage official, she's just being a jealous bitch.
It sounds like your wife could really use your measurements right now. Even though you know you wouldn't cheat, she can't be in your head. Just be honest with her, tell her you love her and you'll miss her and you can't wait to get back home to her.