Really, you should give a year before even thinking abut another go round. Her recovery IF she moves forward with it will be really hard, and its really hard on a relationship. Please read through the many posts on here of what the spouses/partners of those going through recovery endure. If she is 12 stepping she will be advised strongly not to enter into a relationship or make any major life decisions for a year.
I'm glad she chose to go to rehab, and wish her the best in her journey.