Just thought I'd post a comment from the Other Side (gender and now civilian).....
The opportunities for affairs could be more frequent, I guess, because of ops away from home. Do people in happy marriages have affairs? And while you chaps are happy to avail yourself of passing cats, do you worry about 'er indoors doing the same?
But I also think the many of the male of the species in the military (not all) have a (how can I say this nicely) less evolved attitude to their womenfolk, more compartmentalised, less emotionelly involved, more functional.
An Australian Wife Of told me a few years ago that their Army had conducted a survey where they found that military men tended to be eldest sons; unlike their civilian counterparts they tended to marry eldest daughters (two power positions in the family don't mix) because they wanted a woman who could cope....the trouble started when they got home... (especially from tours away)
The last two military marriages I went to, both vicars alluded to the higher than average divorce rate in the military.....
The Man in Uniform is an increasingly unattractive proposition, perhaps you should hang onto what you've got and appreciate it whilst it's there...