wow - what a roller coaster of a week. signs are encouraging, yet if you want to solidify yourself and your marriage i would urge you to stay the DB course. because it appears your W is willing to end the PA and invest in the marriage, the relationship strategies in Divorce Remedy are very likely to help you and show results sooner than in situations that have eroded further than yours.
here's what i think you need to look out for. because both of you are likely to have strong mixed feelings about all kinds of things right now, it is possible that the resolution of W's PA will not be as clean and decisive as it appears right now (it is also possible it will - how can anyone know either way?). if there are any unexpected bumps in this area, you don't want to over-monitor or over-react, as this could serve to once again make this relationship more appealing than it really is.
i think the issue of forgiveness is indeed important, yet i think it will take you a while to sort out what you can or can't do. it feels good when you can really reach that state, but it can take a while. i hope you can be patient with yourself.
