Yep, you have that absolutely right... 1 day at a time.
On the subject of having them move out... Sometimes I think it would be better for me since I couldn't see what he was doing all the time, or when he left and when he came home. His stuff wouldn't be here, so I wouldn't have the opportunity to snoop. On the other hand, since he is still here, I can DB in front of him. So, I really don't know what I would want. I'm thinking though that it would really hurt if he moved out. Especially if he moved in with the skank.
We are in the same house, and a D is in process... So yes, it's 1 day at a time.