OK, so if you went camping, she wasn't on the computer "all day, every day."
Have you said this to her? "I don't know why I did it. That's what my therapist and I are working on. It would be great if you would come along and help us figure it out."
But more important, keep doing what you're doing. Go to therapy. Stay off the computer. Hang around your wife whenever you can so that she doesn't think you're off doing something wrong. And be patient.