By your own admission your husband hasn't cheated on you. Now, have you EVER talked to a man on Facebook and not told your husband about it? Yes? Well then you've done the same thing that he's done. Why is it ok when you do it but not when he does it?

Also, why does your husband have all of this time to talk to women online? Why aren't YOU spending time with him so that he won't want to talk to other women? Perhaps instead of looking for something to accuse him of you might want to examine your own behavior.