Heck no - you could end up with a disease, kick him out.
Definitely yes
Not neccessarilly. Maybe he just prefers to sleep by himself. Discuss it with him.
no because he is to good for you you cheating scum
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.
this behavior would definitely be considered cheating on your husband.
Try to spend as much time as possible with your Husband.
Yes.
no! its like cheating on her husband
No. A husband with a cheating wife is called a cuckold.
you should have left him 7 years ago
No.
They are both hypocrites for cheating in the first place. They should obviously not be together.