Hi Doug - I think all relationships go through honeymoon phase which wears off and we tend to forget. So whilst you question if you ever initially felt that way about your wife, I think that the honeymoon phase was definitely there - "When we first started dating we couldn't keep our hands off of each other. It was very passionate."

You are more than likely subconsciously emitting a vibe to this woman at work and on SOME kind of level she may realise there's an attraction but just not admit it - she knows you're a married man and shouldn't be thinking that you'd be thinking about her, in that way.

My two cents worth is that this would be an extremely bad idea -

"I think this woman may have feelings for me as well but I can't say for sure. I want to ask her if she does because I feel like maybe if she doesn't feel the same way that will help me get over this but I don't know if that's a good idea."

It's playing with fire and putting temptation in both of your hands.

Focus on that which is good. A new baby arriving can be a very stressful time; and yes; it can take quite a while to get your lives - especially your sex lives back together. But it's not impossible for it to be the same way it was. You just need to be utterly willing to do it.

Focus your energy and attention that you invest in this other woman towards your wife and you may hopefully start to see some changes.

Do something small for your wife to show her your appreciation. Flowers, a simple dinner, even making dinner etc can go wonders.