Trent, If she is spending hours in front of the computer playing a game, well my W has been playing the same solitare game now for a year, hours and hours. basically just staring into space. This is part of the depression speaking. I feel it is a way for her to think about her crisis. To escape the real world.
I wouldn't interrupt it. Let her do her thing while you do yours. I think it is part of the process.