Do you trust your wife? Does she trust you?
What drove you to dig through HER emails, a lack of trust?
Your relationship is yours alone. Maybe you guys should seek marriage counseling, it can help a lot, especially considering you have a baby on the way, etc... Ask her if you guys could restore the intimacy and trust, the love that was there before, would she consider staying together? If so, then please seek marriage counseling !
For the record, I talk to all my "exes". I even live with one. We went to Vegas together for work, and even shared a hotel room. My husband doesn't care because he trusts me. I have never given him a reason not to, and vice versa. Trust is so important. I hope you guys can salvage your relationship, because it sounds like you're in the midst of a bad fight, and trying to hurt each other is never good. My sympathies.