As long as my wife feels safe with a man she dates and travels with a him alone.
I love the excitement of her ...... over at a man's place with me waiting for her at our home.
Then I get told all the details the day after.
Go to clubs near military bases, there's plenty of clean,fit and healthy young men and women.
They tend to be respectful and depending on the base they aren't around long if you don't want a long term relationship.
I would think it's up to her who she has sex with more then the cuck husband, if she sleeps with other men already it's not for you to say no.
Basically stay in your place.