I'm not an expert, but everyone I have talked to that has seen this kind of thing play out says this is the first step. Anger and guilt are opposites, and when she was angry at you, she didn't feel the guilt of what she is doing to you and her family. right now it sounds like she is feeling less anger, which is letting her really for the first time see all the changes you have made. She won't say it though, and her heart nothing has really changed at this point, because this is only step 1.
It moves slowly, and there will be steps backward along the way. Right now your wife's brain is starting to realize things, she is slowly unlocking the door and making space for you again. Her heart will follow in time. You are just going to have patience, lots and lots of patience. Just keep at it, and don't rush her. Let her drive.
