Sorry you find yourself here, but glad that you found your way here. Many others in the same situation, trying to figure things out, trying to overcome the heartache, and just trying to make it day to day. You are on the roller coaster right now, strap in and hold on tight, there will be ups and downs, but there is a great community of people here that will help you through this and help get things in perspective.
I would suggest seeking out Sandi2, she was a WAW and has a lot of insight from that perspective, and she is also a wonderful source of inspiration as she is back with her H after many ups and downs.
As hard as it is right now, keep your hope and faith, as long as one partner is committed to saving the relationship, your marriage is not over. Stay strong, and lean on us, we all know the pain you are feeling, and we're here for you.