My brother recently told his wife he didn't want to remain married. Childhood sweethearts, married young, grew apart. If either of them told their story here, they would get calls of 'LTB'.... No cheating or abuse, but very dysfunctional for a long time.
I wouldconsider myself to be friendly rather than friends with my SIL, but I think she would definitely consider me a close friend; she's always struggled to make and maintain friendships, and often confided in me about the problems they were having.
Does anyone have advice on how you treat the changing relationship? I'm very aware she's hurt and angry, and I don't want her to feel like I'm treating her badly too, but I don't want to be her support, and I definitely don't want to be trailed into the middle of the mess! What level of involvement do people take, or would you expect if you were her?