Can I please add something? I would also suggest that you "lurk" here a bit. Read what other people have posted, both questions/problems and answers. You will pick up a lot of information just by peering over somebody's shoulder.
If you have any interest in saving your marriage, you will want to purchase Michelle's book Divorce Remedy (affectionately known around here as DR). Don't tell your wife you purchased it. Keep it to yourself if you can. Then read the book, and put what she says into motion. Pay particular attention to page 124 & beyond (Last Resort Technique - known as LRT here on this board). I am not shilling for Michelle here: I got the book in ebay for a good price.
Hang in there, and try to be positive!!
PS: To add a signature, scroll to the top of the page, then click My Stuff, and select My Profile. You will see it there.
