I think that as long as you don't indulge in negative speak about either spouse, you're in safe territory.


Sounding board is a fair place, as long as both of them understand you're not interested in being caught in the middle, taking sides or playing referee.


Just because they're in the process of splitting up doesn't mean you have to automatically sever your relationship with her.


I know the family dynamics are way different, but years after their divorce, I actually have no relationship or contact with my "brother" and am on good terms with his ex wife.


I only added that to remind you that nobody knows what lies ahead in our futures, so don't automatically assume that the relationship between yourself and her "should" be a certain way.