Hey Jeff, what a great turn of events.... You just never know what they are going to do.
The one thing I would say is that you need to breathe deep and relax. I know the excitement that gushes through our veins when stuff like this happens. You do not want to come off as pushy or obsessive in this.
Her wanting the counselling is great and I might suggest that while she is doing her IC, you do some IC of your own to help you maintain through this process. If she is really going to deal with all of this there will be some times in this process where she is very down having to face the choices that she has made and it can be really easy for you to misread this and take it as YOU being the reason she is down.
It is apparent to me that she will want to talk to you about her choice here. You need to be prepared to LISTEN. You must let her control the pace of that conversation and allow her to lead you through it.
Anyway, I am sure you will get plenty of advice on here, so suffice it to say that I am very happy for you today and cannot think of a better New Years present.... way to go buddy.