no because he is to good for you you cheating scum
Definitely yes
You should talk to him about it
No
If you have absolute proof that your husband is cheating with this other woman then you should deal with your own problems with your husband first and yes, the other woman's husband should know. This is not an uncommon problem and most people (whether a husband cheats with another man's wife or a wife cheats with one of her friend's husbands) is very common and the victim of the cheating generally does tell the husband or wife that their spouse is cheating with their spouse.
Try to spend as much time as possible with your Husband.
Yes.
no! its like cheating on her husband
It is doubtful your husband is cheating because he will be too busy either taking orders from his Commanding Officer; exercising constantly; falling asleep early because he is exhausted and waking up early to start all over again. If he was deployed for active duty he will be too busy trying to stay alive. God bless him and so should you.
you should have left him 7 years ago
Heck no - you could end up with a disease, kick him out.
They are both hypocrites for cheating in the first place. They should obviously not be together.
you could believe him and ask about it or you could just ignore it!