We recently found out that my SO's parents are separating, with plans to divorce, as his mum has found out that her husband has been unfaithful - and been involved in another relationship for some time. My SO is devastated by the news - both sad and angry, unsure how to feel or what his role should be throughout the inevitable drama to come. He has always been close with both parents up until now. I feel at a total loss as to how to help and support him, as I've been lucky enough to not have experienced parental divorce myself, and most of the advice articles or well-being sites I have searched are all centered (understandably so) around how to support young children through this difficult time. (We are in our mid 20's and SO's parents are ~50yrs).
Any suggestions or thoughts from those who've found themselves in a similar situation (from any side of the coin!) would be really appreciated!