Quote: My wife found out about it. As far as the internet went it was sexually but it was only talk.
And you seriously wonder why she isn't responding to you sexually??? Put the shoe on the other foot and I'd bet you wouldn't be so quick to brush it off.
I also wonder who told you housework is a woman's 'work'? Nothing any sexier than a man who cleans a toilet.
I think the loss of the baby is a very real problem for your W. I have suffered through the loss of a baby, and it remains a very real source of almost physical pain (happened 7 years ago and I can still cry over it). She is probably dealing with a depression, and nothing makes you a bigger couch potato than depression. I can tell you that no matter how bad it got at home, I couldn't do anything about it until I got on top of the depression. Help her do something about that first, then see if she still has any feelings left for you at that point.