IronMan, thank you for your comforting words. It's so nice to have a forum to go to where I can talk about these things as much as I need to and not feel like I'm "burdening" folks on here. I know personal friends can only do so much, and then they themselves just begin to feel helpless and angry. I'm glad we have our community to help each other and know how and why we do what we do.
Lila, I suppose I don't know for sure that it was an EA. He had pictures from them bar hopping together and sunbathing together on his hotel balcony. They were extremely physically close in most of the pictures. I also found out that when he went on his NOLA trip with Best Friend at New Years (remember, the "this will help me get excited about the baby" trip?), she ALSO decided to take a trip to NOLA with her best friend for New Years.... He insists that they weren't going "together", but he fully admits they planned to be there at the same time and hang together. I also found in our phone records that he had an hour long conversation with her at 3 AM Cali time one evening. I actually found him in the garage having that conversation and he told me at the time that it was another male coworker. It wasn't until I checked the records a few months later that I found out who it really was.
But I have not found any emails relaying message of loving one another, he's not bought any gifts for her, and there's no other "hard" evidence suggesting that it is, in fact, an A. They are partners on the same team, and there is a 2 hour difference in the time, so I can see how an hour long conversation at 7 PM our time is 5 PM Cali time and ergo may be completely work related.
But my gut says otherwise.
Best Friend does not seem to think they have an EA style of relationship. I think she's most definitely inappropriate if nothing else (not only the level at which she has involved herself with a married man who has a pregnant wife, but a COWORKER). The sheer fact that she seems to have little to no good judgement about this situation is very disturbing. Not to mention H being a complete idiot for putting himself in such a position, especially given the nature of his job.
I do not trust her, I do not trust him, and I just generally do not trust this situation.