You know what? I wouldn't say a word about it to him. And if he accuses you of spying, I would deny it.
I wouldn't give up that valuable information source.
I agree with you, there is something flirty about those emails, although to me reading it, it seems more like SHE is flirting with HIM. She thinks he's too serious and he claims it's a defense mechanism, it MIGHT be a defense mechanism against flirty women he still has to do business with!
But I would keep checking (after he comes home! and preferably in a way he can't notice). One thing I have learned is that when my suspicions are aroused, I am usually right.
I too was NEVER the jealous type, and even when I took my H back, I wasn't jealous. In retrospect, I should have figured things out long before I did.
